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Finding the Fourth Proportional to 89,079,819.20, 124,881,808 and 89,079,819.20

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Solution

The fourth proportional to 89,079,819.20, 124,881,808 and 89,079,819.20 is: 124,881,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,079,819.20 : 124,881,808 = 89,079,819.20 : x
  2. Step 2: Convert to fraction form
    89,079,819.20/124,881,808 = 89,079,819.20/x
  3. Step 3: Cross multiply
    89,079,819.20x = 124,881,808 × 89,079,819.20
  4. Step 4: Simplify right side
    89,079,819.20x = 11,124,448,878,009,114
  5. Step 5: Solve for x
    x = 11,124,448,878,009,114/89,079,819.20
  6. Step 6: Final answer
    x = 124,881,808

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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.