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Finding the Fourth Proportional to 125,060.90, 172,584.14 and 67,700.05

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Solution

The fourth proportional to 125,060.90, 172,584.14 and 67,700.05 is: 93,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,060.90 : 172,584.14 = 67,700.05 : x
  2. Step 2: Convert to fraction form
    125,060.90/172,584.14 = 67,700.05/x
  3. Step 3: Cross multiply
    125,060.90x = 172,584.14 × 67,700.05
  4. Step 4: Simplify right side
    125,060.90x = 11,683,954,907.21
  5. Step 5: Solve for x
    x = 11,683,954,907.21/125,060.90
  6. Step 6: Final answer
    x = 93,426.12

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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.