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Finding the Fourth Proportional to 72,539,548.80, 108,809,323.20 and 24,024,890.40

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Solution

The fourth proportional to 72,539,548.80, 108,809,323.20 and 24,024,890.40 is: 36,037,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,539,548.80 : 108,809,323.20 = 24,024,890.40 : x
  2. Step 2: Convert to fraction form
    72,539,548.80/108,809,323.20 = 24,024,890.40/x
  3. Step 3: Cross multiply
    72,539,548.80x = 108,809,323.20 × 24,024,890.40
  4. Step 4: Simplify right side
    72,539,548.80x = 2,614,132,064,378,177
  5. Step 5: Solve for x
    x = 2,614,132,064,378,177/72,539,548.80
  6. Step 6: Final answer
    x = 36,037,335.60

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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.