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Finding the Fourth Proportional to 170,465.40, 255,698.10 and 153,876.60

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Solution

The fourth proportional to 170,465.40, 255,698.10 and 153,876.60 is: 230,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,465.40 : 255,698.10 = 153,876.60 : x
  2. Step 2: Convert to fraction form
    170,465.40/255,698.10 = 153,876.60/x
  3. Step 3: Cross multiply
    170,465.40x = 255,698.10 × 153,876.60
  4. Step 4: Simplify right side
    170,465.40x = 39,345,954,254.46
  5. Step 5: Solve for x
    x = 39,345,954,254.46/170,465.40
  6. Step 6: Final answer
    x = 230,814.90

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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.