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Finding the Fourth Proportional to 220,656.60, 330,988.14 and 54,444.60

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Solution

The fourth proportional to 220,656.60, 330,988.14 and 54,444.60 is: 81,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,656.60 : 330,988.14 = 54,444.60 : x
  2. Step 2: Convert to fraction form
    220,656.60/330,988.14 = 54,444.60/x
  3. Step 3: Cross multiply
    220,656.60x = 330,988.14 × 54,444.60
  4. Step 4: Simplify right side
    220,656.60x = 18,020,516,887.04
  5. Step 5: Solve for x
    x = 18,020,516,887.04/220,656.60
  6. Step 6: Final answer
    x = 81,667.70

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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.