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Finding the Fourth Proportional to 83,122.84, 114,710.10 and 45,397.96

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Solution

The fourth proportional to 83,122.84, 114,710.10 and 45,397.96 is: 62,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,122.84 : 114,710.10 = 45,397.96 : x
  2. Step 2: Convert to fraction form
    83,122.84/114,710.10 = 45,397.96/x
  3. Step 3: Cross multiply
    83,122.84x = 114,710.10 × 45,397.96
  4. Step 4: Simplify right side
    83,122.84x = 5,207,604,531.40
  5. Step 5: Solve for x
    x = 5,207,604,531.40/83,122.84
  6. Step 6: Final answer
    x = 62,649.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.