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Finding the Fourth Proportional to 67,497.40, 101,159.70 and 59,721.40

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Solution

The fourth proportional to 67,497.40, 101,159.70 and 59,721.40 is: 89,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,497.40 : 101,159.70 = 59,721.40 : x
  2. Step 2: Convert to fraction form
    67,497.40/101,159.70 = 59,721.40/x
  3. Step 3: Cross multiply
    67,497.40x = 101,159.70 × 59,721.40
  4. Step 4: Simplify right side
    67,497.40x = 6,041,398,907.58
  5. Step 5: Solve for x
    x = 6,041,398,907.58/67,497.40
  6. Step 6: Final answer
    x = 89,505.65

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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.