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Finding the Fourth Proportional to 231,018.80, 346,378.35 and 97,862.90

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Solution

The fourth proportional to 231,018.80, 346,378.35 and 97,862.90 is: 146,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,018.80 : 346,378.35 = 97,862.90 : x
  2. Step 2: Convert to fraction form
    231,018.80/346,378.35 = 97,862.90/x
  3. Step 3: Cross multiply
    231,018.80x = 346,378.35 × 97,862.90
  4. Step 4: Simplify right side
    231,018.80x = 33,897,589,828.22
  5. Step 5: Solve for x
    x = 33,897,589,828.22/231,018.80
  6. Step 6: Final answer
    x = 146,730.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.