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Finding the Fourth Proportional to 159,807.50, 220,538.84 and 88,192.05

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Solution

The fourth proportional to 159,807.50, 220,538.84 and 88,192.05 is: 121,707.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.50 : 220,538.84 = 88,192.05 : x
  2. Step 2: Convert to fraction form
    159,807.50/220,538.84 = 88,192.05/x
  3. Step 3: Cross multiply
    159,807.50x = 220,538.84 × 88,192.05
  4. Step 4: Simplify right side
    159,807.50x = 19,449,772,404.22
  5. Step 5: Solve for x
    x = 19,449,772,404.22/159,807.50
  6. Step 6: Final answer
    x = 121,707.51

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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.