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Finding the Fourth Proportional to 92,643,669, 138,966,501.29 and 27,948,034.56

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Solution

The fourth proportional to 92,643,669, 138,966,501.29 and 27,948,034.56 is: 41,922,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,643,669 : 138,966,501.29 = 27,948,034.56 : x
  2. Step 2: Convert to fraction form
    92,643,669/138,966,501.29 = 27,948,034.56/x
  3. Step 3: Cross multiply
    92,643,669x = 138,966,501.29 × 27,948,034.56
  4. Step 4: Simplify right side
    92,643,669x = 3,883,840,580,735,204
  5. Step 5: Solve for x
    x = 3,883,840,580,735,204/92,643,669
  6. Step 6: Final answer
    x = 41,922,352.85

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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.