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Finding the Fourth Proportional to 98,757.84, 136,296.18 and 60,543

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Solution

The fourth proportional to 98,757.84, 136,296.18 and 60,543 is: 83,555.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,757.84 : 136,296.18 = 60,543 : x
  2. Step 2: Convert to fraction form
    98,757.84/136,296.18 = 60,543/x
  3. Step 3: Cross multiply
    98,757.84x = 136,296.18 × 60,543
  4. Step 4: Simplify right side
    98,757.84x = 8,251,779,625.74
  5. Step 5: Solve for x
    x = 8,251,779,625.74/98,757.84
  6. Step 6: Final answer
    x = 83,555.69

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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.