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Finding the Fourth Proportional to 67,897.70, 101,807.08 and 45,434.06

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Solution

The fourth proportional to 67,897.70, 101,807.08 and 45,434.06 is: 68,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,897.70 : 101,807.08 = 45,434.06 : x
  2. Step 2: Convert to fraction form
    67,897.70/101,807.08 = 45,434.06/x
  3. Step 3: Cross multiply
    67,897.70x = 101,807.08 × 45,434.06
  4. Step 4: Simplify right side
    67,897.70x = 4,625,508,981.14
  5. Step 5: Solve for x
    x = 4,625,508,981.14/67,897.70
  6. Step 6: Final answer
    x = 68,124.68

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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.