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Finding the Fourth Proportional to 98,341.72, 135,691.23 and 57,497.98

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Solution

The fourth proportional to 98,341.72, 135,691.23 and 57,497.98 is: 79,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341.72 : 135,691.23 = 57,497.98 : x
  2. Step 2: Convert to fraction form
    98,341.72/135,691.23 = 57,497.98/x
  3. Step 3: Cross multiply
    98,341.72x = 135,691.23 × 57,497.98
  4. Step 4: Simplify right side
    98,341.72x = 7,801,971,628.72
  5. Step 5: Solve for x
    x = 7,801,971,628.72/98,341.72
  6. Step 6: Final answer
    x = 79,335.32

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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.