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Finding the Fourth Proportional to 123,308.86, 170,165.86 and 69,593.71

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Solution

The fourth proportional to 123,308.86, 170,165.86 and 69,593.71 is: 96,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,308.86 : 170,165.86 = 69,593.71 : x
  2. Step 2: Convert to fraction form
    123,308.86/170,165.86 = 69,593.71/x
  3. Step 3: Cross multiply
    123,308.86x = 170,165.86 × 69,593.71
  4. Step 4: Simplify right side
    123,308.86x = 11,842,473,512.74
  5. Step 5: Solve for x
    x = 11,842,473,512.74/123,308.86
  6. Step 6: Final answer
    x = 96,039.11

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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.