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Finding the Fourth Proportional to 159,110.97, 219,518.49 and 98,659.86

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Solution

The fourth proportional to 159,110.97, 219,518.49 and 98,659.86 is: 136,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,110.97 : 219,518.49 = 98,659.86 : x
  2. Step 2: Convert to fraction form
    159,110.97/219,518.49 = 98,659.86/x
  3. Step 3: Cross multiply
    159,110.97x = 219,518.49 × 98,659.86
  4. Step 4: Simplify right side
    159,110.97x = 21,657,663,490.81
  5. Step 5: Solve for x
    x = 21,657,663,490.81/159,110.97
  6. Step 6: Final answer
    x = 136,116.72

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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.