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Finding the Fourth Proportional to 119,761,703.70, 179,642,555.55 and 81,497,951.70

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Solution

The fourth proportional to 119,761,703.70, 179,642,555.55 and 81,497,951.70 is: 122,246,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,761,703.70 : 179,642,555.55 = 81,497,951.70 : x
  2. Step 2: Convert to fraction form
    119,761,703.70/179,642,555.55 = 81,497,951.70/x
  3. Step 3: Cross multiply
    119,761,703.70x = 179,642,555.55 × 81,497,951.70
  4. Step 4: Simplify right side
    119,761,703.70x = 14,640,500,315,478,468
  5. Step 5: Solve for x
    x = 14,640,500,315,478,468/119,761,703.70
  6. Step 6: Final answer
    x = 122,246,927.55

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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.