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Finding the Fourth Proportional to 79,737,981.60, 119,662,959.60 and 34,332,362.40

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Solution

The fourth proportional to 79,737,981.60, 119,662,959.60 and 34,332,362.40 is: 51,522,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,737,981.60 : 119,662,959.60 = 34,332,362.40 : x
  2. Step 2: Convert to fraction form
    79,737,981.60/119,662,959.60 = 34,332,362.40/x
  3. Step 3: Cross multiply
    79,737,981.60x = 119,662,959.60 × 34,332,362.40
  4. Step 4: Simplify right side
    79,737,981.60x = 4,108,312,094,843,758.50
  5. Step 5: Solve for x
    x = 4,108,312,094,843,758.50/79,737,981.60
  6. Step 6: Final answer
    x = 51,522,649.71

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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.