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Finding the Fourth Proportional to 160,618.60, 221,655.18 and 88,999.48

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Solution

The fourth proportional to 160,618.60, 221,655.18 and 88,999.48 is: 122,820.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,618.60 : 221,655.18 = 88,999.48 : x
  2. Step 2: Convert to fraction form
    160,618.60/221,655.18 = 88,999.48/x
  3. Step 3: Cross multiply
    160,618.60x = 221,655.18 × 88,999.48
  4. Step 4: Simplify right side
    160,618.60x = 19,727,195,759.31
  5. Step 5: Solve for x
    x = 19,727,195,759.31/160,618.60
  6. Step 6: Final answer
    x = 122,820.12

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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.