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Finding the Fourth Proportional to 84,248,657.55, 126,372,986.33 and 84,248,657.55

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Solution

The fourth proportional to 84,248,657.55, 126,372,986.33 and 84,248,657.55 is: 126,372,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,657.55 : 126,372,986.33 = 84,248,657.55 : x
  2. Step 2: Convert to fraction form
    84,248,657.55/126,372,986.33 = 84,248,657.55/x
  3. Step 3: Cross multiply
    84,248,657.55x = 126,372,986.33 × 84,248,657.55
  4. Step 4: Simplify right side
    84,248,657.55x = 10,646,754,448,465,758
  5. Step 5: Solve for x
    x = 10,646,754,448,465,758/84,248,657.55
  6. Step 6: Final answer
    x = 126,372,986.33

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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.