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Finding the Fourth Proportional to 85,338,889.60, 127,908,801.60 and 34,195,619.20

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Solution

The fourth proportional to 85,338,889.60, 127,908,801.60 and 34,195,619.20 is: 51,253,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,338,889.60 : 127,908,801.60 = 34,195,619.20 : x
  2. Step 2: Convert to fraction form
    85,338,889.60/127,908,801.60 = 34,195,619.20/x
  3. Step 3: Cross multiply
    85,338,889.60x = 127,908,801.60 × 34,195,619.20
  4. Step 4: Simplify right side
    85,338,889.60x = 4,373,920,671,841,951
  5. Step 5: Solve for x
    x = 4,373,920,671,841,951/85,338,889.60
  6. Step 6: Final answer
    x = 51,253,545.63

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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.