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Finding the Fourth Proportional to 112,998, 155,937.12 and 62,011.02

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Solution

The fourth proportional to 112,998, 155,937.12 and 62,011.02 is: 85,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,998 : 155,937.12 = 62,011.02 : x
  2. Step 2: Convert to fraction form
    112,998/155,937.12 = 62,011.02/x
  3. Step 3: Cross multiply
    112,998x = 155,937.12 × 62,011.02
  4. Step 4: Simplify right side
    112,998x = 9,669,819,867.06
  5. Step 5: Solve for x
    x = 9,669,819,867.06/112,998
  6. Step 6: Final answer
    x = 85,575.14

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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.