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Finding the Fourth Proportional to 172,542.96, 238,061.44 and 103,614.64

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Solution

The fourth proportional to 172,542.96, 238,061.44 and 103,614.64 is: 142,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542.96 : 238,061.44 = 103,614.64 : x
  2. Step 2: Convert to fraction form
    172,542.96/238,061.44 = 103,614.64/x
  3. Step 3: Cross multiply
    172,542.96x = 238,061.44 × 103,614.64
  4. Step 4: Simplify right side
    172,542.96x = 24,666,650,403.48
  5. Step 5: Solve for x
    x = 24,666,650,403.48/172,542.96
  6. Step 6: Final answer
    x = 142,959.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.