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Finding the Fourth Proportional to 125,119.52, 172,665.03 and 67,758.93

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Solution

The fourth proportional to 125,119.52, 172,665.03 and 67,758.93 is: 93,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,119.52 : 172,665.03 = 67,758.93 : x
  2. Step 2: Convert to fraction form
    125,119.52/172,665.03 = 67,758.93/x
  3. Step 3: Cross multiply
    125,119.52x = 172,665.03 × 67,758.93
  4. Step 4: Simplify right side
    125,119.52x = 11,699,597,935.31
  5. Step 5: Solve for x
    x = 11,699,597,935.31/125,119.52
  6. Step 6: Final answer
    x = 93,507.38

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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.