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Finding the Fourth Proportional to 72,396,327.60, 108,594,491.40 and 59,641,743.60

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Solution

The fourth proportional to 72,396,327.60, 108,594,491.40 and 59,641,743.60 is: 89,462,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,396,327.60 : 108,594,491.40 = 59,641,743.60 : x
  2. Step 2: Convert to fraction form
    72,396,327.60/108,594,491.40 = 59,641,743.60/x
  3. Step 3: Cross multiply
    72,396,327.60x = 108,594,491.40 × 59,641,743.60
  4. Step 4: Simplify right side
    72,396,327.60x = 6,476,764,812,451,206
  5. Step 5: Solve for x
    x = 6,476,764,812,451,206/72,396,327.60
  6. Step 6: Final answer
    x = 89,462,615.40

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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.