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Finding the Fourth Proportional to 110,881.84, 153,016.68 and 60,581.20

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Solution

The fourth proportional to 110,881.84, 153,016.68 and 60,581.20 is: 83,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,881.84 : 153,016.68 = 60,581.20 : x
  2. Step 2: Convert to fraction form
    110,881.84/153,016.68 = 60,581.20/x
  3. Step 3: Cross multiply
    110,881.84x = 153,016.68 × 60,581.20
  4. Step 4: Simplify right side
    110,881.84x = 9,269,934,094.42
  5. Step 5: Solve for x
    x = 9,269,934,094.42/110,881.84
  6. Step 6: Final answer
    x = 83,601.91

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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.