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Finding the Fourth Proportional to 147,407.20, 220,981.20 and 88,266.40

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Solution

The fourth proportional to 147,407.20, 220,981.20 and 88,266.40 is: 132,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,407.20 : 220,981.20 = 88,266.40 : x
  2. Step 2: Convert to fraction form
    147,407.20/220,981.20 = 88,266.40/x
  3. Step 3: Cross multiply
    147,407.20x = 220,981.20 × 88,266.40
  4. Step 4: Simplify right side
    147,407.20x = 19,505,214,991.68
  5. Step 5: Solve for x
    x = 19,505,214,991.68/147,407.20
  6. Step 6: Final answer
    x = 132,322.00

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1.5x scale

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.