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Finding the Fourth Proportional to 92,292,123.60, 138,438,185.40 and 92,292,123.60

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Solution

The fourth proportional to 92,292,123.60, 138,438,185.40 and 92,292,123.60 is: 138,438,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,292,123.60 : 138,438,185.40 = 92,292,123.60 : x
  2. Step 2: Convert to fraction form
    92,292,123.60/138,438,185.40 = 92,292,123.60/x
  3. Step 3: Cross multiply
    92,292,123.60x = 138,438,185.40 × 92,292,123.60
  4. Step 4: Simplify right side
    92,292,123.60x = 12,776,754,117,896,516
  5. Step 5: Solve for x
    x = 12,776,754,117,896,516/92,292,123.60
  6. Step 6: Final answer
    x = 138,438,185.40

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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.