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Finding the Fourth Proportional to 442,893,237.60, 664,339,856.40 and 115,368,117.60

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Solution

The fourth proportional to 442,893,237.60, 664,339,856.40 and 115,368,117.60 is: 173,052,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,893,237.60 : 664,339,856.40 = 115,368,117.60 : x
  2. Step 2: Convert to fraction form
    442,893,237.60/664,339,856.40 = 115,368,117.60/x
  3. Step 3: Cross multiply
    442,893,237.60x = 664,339,856.40 × 115,368,117.60
  4. Step 4: Simplify right side
    442,893,237.60x = 76,643,638,679,522,304
  5. Step 5: Solve for x
    x = 76,643,638,679,522,304/442,893,237.60
  6. Step 6: Final answer
    x = 173,052,176.40

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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.