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Finding the Fourth Proportional to 98,248.17, 135,575.19 and 55,798.50

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Solution

The fourth proportional to 98,248.17, 135,575.19 and 55,798.50 is: 76,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,248.17 : 135,575.19 = 55,798.50 : x
  2. Step 2: Convert to fraction form
    98,248.17/135,575.19 = 55,798.50/x
  3. Step 3: Cross multiply
    98,248.17x = 135,575.19 × 55,798.50
  4. Step 4: Simplify right side
    98,248.17x = 7,564,892,239.22
  5. Step 5: Solve for x
    x = 7,564,892,239.22/98,248.17
  6. Step 6: Final answer
    x = 76,997.79

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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.