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Finding the Fourth Proportional to 159,598.32, 220,325.40 and 123,707.76

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Solution

The fourth proportional to 159,598.32, 220,325.40 and 123,707.76 is: 170,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,598.32 : 220,325.40 = 123,707.76 : x
  2. Step 2: Convert to fraction form
    159,598.32/220,325.40 = 123,707.76/x
  3. Step 3: Cross multiply
    159,598.32x = 220,325.40 × 123,707.76
  4. Step 4: Simplify right side
    159,598.32x = 27,255,961,705.10
  5. Step 5: Solve for x
    x = 27,255,961,705.10/159,598.32
  6. Step 6: Final answer
    x = 170,778.50

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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.