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Finding the Fourth Proportional to 170,658,465.20, 255,987,697.80 and 170,658,465.20

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Solution

The fourth proportional to 170,658,465.20, 255,987,697.80 and 170,658,465.20 is: 255,987,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,658,465.20 : 255,987,697.80 = 170,658,465.20 : x
  2. Step 2: Convert to fraction form
    170,658,465.20/255,987,697.80 = 170,658,465.20/x
  3. Step 3: Cross multiply
    170,658,465.20x = 255,987,697.80 × 170,658,465.20
  4. Step 4: Simplify right side
    170,658,465.20x = 43,686,467,616,629,416
  5. Step 5: Solve for x
    x = 43,686,467,616,629,416/170,658,465.20
  6. Step 6: Final answer
    x = 255,987,697.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.