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Finding the Fourth Proportional to 65,306.91, 90,124.62 and 37,011.99

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Solution

The fourth proportional to 65,306.91, 90,124.62 and 37,011.99 is: 51,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,306.91 : 90,124.62 = 37,011.99 : x
  2. Step 2: Convert to fraction form
    65,306.91/90,124.62 = 37,011.99/x
  3. Step 3: Cross multiply
    65,306.91x = 90,124.62 × 37,011.99
  4. Step 4: Simplify right side
    65,306.91x = 3,335,691,534.19
  5. Step 5: Solve for x
    x = 3,335,691,534.19/65,306.91
  6. Step 6: Final answer
    x = 51,077.16

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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.