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Finding the Fourth Proportional to 62,490,168.20, 87,271,001.87 and 62,490,168.20

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Solution

The fourth proportional to 62,490,168.20, 87,271,001.87 and 62,490,168.20 is: 87,271,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,490,168.20 : 87,271,001.87 = 62,490,168.20 : x
  2. Step 2: Convert to fraction form
    62,490,168.20/87,271,001.87 = 62,490,168.20/x
  3. Step 3: Cross multiply
    62,490,168.20x = 87,271,001.87 × 62,490,168.20
  4. Step 4: Simplify right side
    62,490,168.20x = 5,453,579,585,838,815
  5. Step 5: Solve for x
    x = 5,453,579,585,838,815/62,490,168.20
  6. Step 6: Final answer
    x = 87,271,001.87

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.