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Finding the Fourth Proportional to 57,615,458.80, 86,423,188.20 and 57,615,458.80

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Solution

The fourth proportional to 57,615,458.80, 86,423,188.20 and 57,615,458.80 is: 86,423,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,615,458.80 : 86,423,188.20 = 57,615,458.80 : x
  2. Step 2: Convert to fraction form
    57,615,458.80/86,423,188.20 = 57,615,458.80/x
  3. Step 3: Cross multiply
    57,615,458.80x = 86,423,188.20 × 57,615,458.80
  4. Step 4: Simplify right side
    57,615,458.80x = 4,979,311,639,101,746
  5. Step 5: Solve for x
    x = 4,979,311,639,101,746/57,615,458.80
  6. Step 6: Final answer
    x = 86,423,188.20

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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.