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Finding the Fourth Proportional to 147,363.42, 220,887.75 and 84,047.22

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Solution

The fourth proportional to 147,363.42, 220,887.75 and 84,047.22 is: 125,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,363.42 : 220,887.75 = 84,047.22 : x
  2. Step 2: Convert to fraction form
    147,363.42/220,887.75 = 84,047.22/x
  3. Step 3: Cross multiply
    147,363.42x = 220,887.75 × 84,047.22
  4. Step 4: Simplify right side
    147,363.42x = 18,565,001,319.56
  5. Step 5: Solve for x
    x = 18,565,001,319.56/147,363.42
  6. Step 6: Final answer
    x = 125,981.07

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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.