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Finding the Fourth Proportional to 160,546.88, 221,552.20 and 87,949.16

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Solution

The fourth proportional to 160,546.88, 221,552.20 and 87,949.16 is: 121,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,546.88 : 221,552.20 = 87,949.16 : x
  2. Step 2: Convert to fraction form
    160,546.88/221,552.20 = 87,949.16/x
  3. Step 3: Cross multiply
    160,546.88x = 221,552.20 × 87,949.16
  4. Step 4: Simplify right side
    160,546.88x = 19,485,329,886.15
  5. Step 5: Solve for x
    x = 19,485,329,886.15/160,546.88
  6. Step 6: Final answer
    x = 121,368.47

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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.