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Finding the Fourth Proportional to 71,572,806.60, 107,390,702.70 and 33,214,576.20

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Solution

The fourth proportional to 71,572,806.60, 107,390,702.70 and 33,214,576.20 is: 49,836,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,572,806.60 : 107,390,702.70 = 33,214,576.20 : x
  2. Step 2: Convert to fraction form
    71,572,806.60/107,390,702.70 = 33,214,576.20/x
  3. Step 3: Cross multiply
    71,572,806.60x = 107,390,702.70 × 33,214,576.20
  4. Step 4: Simplify right side
    71,572,806.60x = 3,566,936,678,000,696
  5. Step 5: Solve for x
    x = 3,566,936,678,000,696/71,572,806.60
  6. Step 6: Final answer
    x = 49,836,479.07

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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.