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Finding the Fourth Proportional to 82,893,283.60, 124,339,925.40 and 77,850,288.40

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Solution

The fourth proportional to 82,893,283.60, 124,339,925.40 and 77,850,288.40 is: 116,775,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,893,283.60 : 124,339,925.40 = 77,850,288.40 : x
  2. Step 2: Convert to fraction form
    82,893,283.60/124,339,925.40 = 77,850,288.40/x
  3. Step 3: Cross multiply
    82,893,283.60x = 124,339,925.40 × 77,850,288.40
  4. Step 4: Simplify right side
    82,893,283.60x = 9,679,899,052,024,486
  5. Step 5: Solve for x
    x = 9,679,899,052,024,486/82,893,283.60
  6. Step 6: Final answer
    x = 116,775,432.60

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1.5x scale

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.