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Finding the Fourth Proportional to 125,066.01, 172,589.78 and 67,704.04

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Solution

The fourth proportional to 125,066.01, 172,589.78 and 67,704.04 is: 93,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,066.01 : 172,589.78 = 67,704.04 : x
  2. Step 2: Convert to fraction form
    125,066.01/172,589.78 = 67,704.04/x
  3. Step 3: Cross multiply
    125,066.01x = 172,589.78 × 67,704.04
  4. Step 4: Simplify right side
    125,066.01x = 11,685,025,030.19
  5. Step 5: Solve for x
    x = 11,685,025,030.19/125,066.01
  6. Step 6: Final answer
    x = 93,430.87

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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.