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Finding the Fourth Proportional to 82,984,672.80, 124,477,009.20 and 58,750,963.20

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Solution

The fourth proportional to 82,984,672.80, 124,477,009.20 and 58,750,963.20 is: 88,126,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,984,672.80 : 124,477,009.20 = 58,750,963.20 : x
  2. Step 2: Convert to fraction form
    82,984,672.80/124,477,009.20 = 58,750,963.20/x
  3. Step 3: Cross multiply
    82,984,672.80x = 124,477,009.20 × 58,750,963.20
  4. Step 4: Simplify right side
    82,984,672.80x = 7,313,144,186,755,262
  5. Step 5: Solve for x
    x = 7,313,144,186,755,262/82,984,672.80
  6. Step 6: Final answer
    x = 88,126,444.80

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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.