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Finding the Fourth Proportional to 112,882, 155,782.02 and 62,581

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Solution

The fourth proportional to 112,882, 155,782.02 and 62,581 is: 86,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,882 : 155,782.02 = 62,581 : x
  2. Step 2: Convert to fraction form
    112,882/155,782.02 = 62,581/x
  3. Step 3: Cross multiply
    112,882x = 155,782.02 × 62,581
  4. Step 4: Simplify right side
    112,882x = 9,748,994,593.62
  5. Step 5: Solve for x
    x = 9,748,994,593.62/112,882
  6. Step 6: Final answer
    x = 86,364.47

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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.