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Finding the Fourth Proportional to 98,341.53, 135,690.98 and 57,497.79

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Solution

The fourth proportional to 98,341.53, 135,690.98 and 57,497.79 is: 79,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341.53 : 135,690.98 = 57,497.79 : x
  2. Step 2: Convert to fraction form
    98,341.53/135,690.98 = 57,497.79/x
  3. Step 3: Cross multiply
    98,341.53x = 135,690.98 × 57,497.79
  4. Step 4: Simplify right side
    98,341.53x = 7,801,930,676.60
  5. Step 5: Solve for x
    x = 7,801,930,676.60/98,341.53
  6. Step 6: Final answer
    x = 79,335.05

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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.