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Finding the Fourth Proportional to 67,931.80, 101,897.70 and 44,312.20

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Solution

The fourth proportional to 67,931.80, 101,897.70 and 44,312.20 is: 66,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,931.80 : 101,897.70 = 44,312.20 : x
  2. Step 2: Convert to fraction form
    67,931.80/101,897.70 = 44,312.20/x
  3. Step 3: Cross multiply
    67,931.80x = 101,897.70 × 44,312.20
  4. Step 4: Simplify right side
    67,931.80x = 4,515,311,261.94
  5. Step 5: Solve for x
    x = 4,515,311,261.94/67,931.80
  6. Step 6: Final answer
    x = 66,468.30

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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.