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Finding the Fourth Proportional to 71,341.60, 106,897.20 and 44,999.20

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Solution

The fourth proportional to 71,341.60, 106,897.20 and 44,999.20 is: 67,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.60 : 106,897.20 = 44,999.20 : x
  2. Step 2: Convert to fraction form
    71,341.60/106,897.20 = 44,999.20/x
  3. Step 3: Cross multiply
    71,341.60x = 106,897.20 × 44,999.20
  4. Step 4: Simplify right side
    71,341.60x = 4,810,288,482.24
  5. Step 5: Solve for x
    x = 4,810,288,482.24/71,341.60
  6. Step 6: Final answer
    x = 67,426.14

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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.