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Finding the Fourth Proportional to 59,781,856.60, 89,672,784.90 and 19,392,340.60

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Solution

The fourth proportional to 59,781,856.60, 89,672,784.90 and 19,392,340.60 is: 29,088,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,781,856.60 : 89,672,784.90 = 19,392,340.60 : x
  2. Step 2: Convert to fraction form
    59,781,856.60/89,672,784.90 = 19,392,340.60/x
  3. Step 3: Cross multiply
    59,781,856.60x = 89,672,784.90 × 19,392,340.60
  4. Step 4: Simplify right side
    59,781,856.60x = 1,738,965,187,331,337.25
  5. Step 5: Solve for x
    x = 1,738,965,187,331,337.25/59,781,856.60
  6. Step 6: Final answer
    x = 29,088,510.90

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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.