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Finding the Fourth Proportional to 66,701.60, 100,052.40 and 22,320.08

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Solution

The fourth proportional to 66,701.60, 100,052.40 and 22,320.08 is: 33,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,701.60 : 100,052.40 = 22,320.08 : x
  2. Step 2: Convert to fraction form
    66,701.60/100,052.40 = 22,320.08/x
  3. Step 3: Cross multiply
    66,701.60x = 100,052.40 × 22,320.08
  4. Step 4: Simplify right side
    66,701.60x = 2,233,177,572.19
  5. Step 5: Solve for x
    x = 2,233,177,572.19/66,701.60
  6. Step 6: Final answer
    x = 33,480.12

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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.