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Finding the Fourth Proportional to 159,641.76, 220,307.28 and 88,024.32

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Solution

The fourth proportional to 159,641.76, 220,307.28 and 88,024.32 is: 121,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,641.76 : 220,307.28 = 88,024.32 : x
  2. Step 2: Convert to fraction form
    159,641.76/220,307.28 = 88,024.32/x
  3. Step 3: Cross multiply
    159,641.76x = 220,307.28 × 88,024.32
  4. Step 4: Simplify right side
    159,641.76x = 19,392,398,513.05
  5. Step 5: Solve for x
    x = 19,392,398,513.05/159,641.76
  6. Step 6: Final answer
    x = 121,474.47

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1.5x scale

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.