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Finding the Fourth Proportional to 159,657.32, 220,323.84 and 88,039.28

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Solution

The fourth proportional to 159,657.32, 220,323.84 and 88,039.28 is: 121,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,657.32 : 220,323.84 = 88,039.28 : x
  2. Step 2: Convert to fraction form
    159,657.32/220,323.84 = 88,039.28/x
  3. Step 3: Cross multiply
    159,657.32x = 220,323.84 × 88,039.28
  4. Step 4: Simplify right side
    159,657.32x = 19,397,152,240.44
  5. Step 5: Solve for x
    x = 19,397,152,240.44/159,657.32
  6. Step 6: Final answer
    x = 121,492.41

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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.