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Finding the Fourth Proportional to 159,646.95, 220,313.25 and 88,025.40

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Solution

The fourth proportional to 159,646.95, 220,313.25 and 88,025.40 is: 121,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,646.95 : 220,313.25 = 88,025.40 : x
  2. Step 2: Convert to fraction form
    159,646.95/220,313.25 = 88,025.40/x
  3. Step 3: Cross multiply
    159,646.95x = 220,313.25 × 88,025.40
  4. Step 4: Simplify right side
    159,646.95x = 19,393,161,956.55
  5. Step 5: Solve for x
    x = 19,393,161,956.55/159,646.95
  6. Step 6: Final answer
    x = 121,475.31

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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.