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Finding the Fourth Proportional to 64,354.13, 88,756.05 and 45,296.99

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Solution

The fourth proportional to 64,354.13, 88,756.05 and 45,296.99 is: 62,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.13 : 88,756.05 = 45,296.99 : x
  2. Step 2: Convert to fraction form
    64,354.13/88,756.05 = 45,296.99/x
  3. Step 3: Cross multiply
    64,354.13x = 88,756.05 × 45,296.99
  4. Step 4: Simplify right side
    64,354.13x = 4,020,381,909.29
  5. Step 5: Solve for x
    x = 4,020,381,909.29/64,354.13
  6. Step 6: Final answer
    x = 62,472.79

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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.