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Finding the Fourth Proportional to 103,242.24, 154,958.40 and 63,876.24

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Solution

The fourth proportional to 103,242.24, 154,958.40 and 63,876.24 is: 95,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,242.24 : 154,958.40 = 63,876.24 : x
  2. Step 2: Convert to fraction form
    103,242.24/154,958.40 = 63,876.24/x
  3. Step 3: Cross multiply
    103,242.24x = 154,958.40 × 63,876.24
  4. Step 4: Simplify right side
    103,242.24x = 9,898,159,948.42
  5. Step 5: Solve for x
    x = 9,898,159,948.42/103,242.24
  6. Step 6: Final answer
    x = 95,873.16

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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.