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Finding the Fourth Proportional to 98,490.67, 146,799.10 and 92,885.11

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Solution

The fourth proportional to 98,490.67, 146,799.10 and 92,885.11 is: 138,444.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490.67 : 146,799.10 = 92,885.11 : x
  2. Step 2: Convert to fraction form
    98,490.67/146,799.10 = 92,885.11/x
  3. Step 3: Cross multiply
    98,490.67x = 146,799.10 × 92,885.11
  4. Step 4: Simplify right side
    98,490.67x = 13,635,450,551.40
  5. Step 5: Solve for x
    x = 13,635,450,551.40/98,490.67
  6. Step 6: Final answer
    x = 138,444.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.