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Finding the Fourth Proportional to 170,468.80, 255,703.20 and 96,740.80

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Solution

The fourth proportional to 170,468.80, 255,703.20 and 96,740.80 is: 145,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,468.80 : 255,703.20 = 96,740.80 : x
  2. Step 2: Convert to fraction form
    170,468.80/255,703.20 = 96,740.80/x
  3. Step 3: Cross multiply
    170,468.80x = 255,703.20 × 96,740.80
  4. Step 4: Simplify right side
    170,468.80x = 24,736,932,130.56
  5. Step 5: Solve for x
    x = 24,736,932,130.56/170,468.80
  6. Step 6: Final answer
    x = 145,111.20

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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.