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Finding the Fourth Proportional to 82,893,273.60, 124,339,910.40 and 77,850,278.40

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Solution

The fourth proportional to 82,893,273.60, 124,339,910.40 and 77,850,278.40 is: 116,775,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,893,273.60 : 124,339,910.40 = 77,850,278.40 : x
  2. Step 2: Convert to fraction form
    82,893,273.60/124,339,910.40 = 77,850,278.40/x
  3. Step 3: Cross multiply
    82,893,273.60x = 124,339,910.40 × 77,850,278.40
  4. Step 4: Simplify right side
    82,893,273.60x = 9,679,896,640,871,056
  5. Step 5: Solve for x
    x = 9,679,896,640,871,056/82,893,273.60
  6. Step 6: Final answer
    x = 116,775,417.60

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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.