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Finding the Fourth Proportional to 125,288.01, 172,898.15 and 67,927.77

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Solution

The fourth proportional to 125,288.01, 172,898.15 and 67,927.77 is: 93,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,288.01 : 172,898.15 = 67,927.77 : x
  2. Step 2: Convert to fraction form
    125,288.01/172,898.15 = 67,927.77/x
  3. Step 3: Cross multiply
    125,288.01x = 172,898.15 × 67,927.77
  4. Step 4: Simplify right side
    125,288.01x = 11,744,585,426.99
  5. Step 5: Solve for x
    x = 11,744,585,426.99/125,288.01
  6. Step 6: Final answer
    x = 93,740.70

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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.