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Finding the Fourth Proportional to 125,206.38, 187,838.80 and 40,966.22

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Solution

The fourth proportional to 125,206.38, 187,838.80 and 40,966.22 is: 61,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,206.38 : 187,838.80 = 40,966.22 : x
  2. Step 2: Convert to fraction form
    125,206.38/187,838.80 = 40,966.22/x
  3. Step 3: Cross multiply
    125,206.38x = 187,838.80 × 40,966.22
  4. Step 4: Simplify right side
    125,206.38x = 7,695,045,605.34
  5. Step 5: Solve for x
    x = 7,695,045,605.34/125,206.38
  6. Step 6: Final answer
    x = 61,458.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.