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Finding the Fourth Proportional to 160,575.90, 221,608.35 and 88,978.38

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Solution

The fourth proportional to 160,575.90, 221,608.35 and 88,978.38 is: 122,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,575.90 : 221,608.35 = 88,978.38 : x
  2. Step 2: Convert to fraction form
    160,575.90/221,608.35 = 88,978.38/x
  3. Step 3: Cross multiply
    160,575.90x = 221,608.35 × 88,978.38
  4. Step 4: Simplify right side
    160,575.90x = 19,718,351,977.47
  5. Step 5: Solve for x
    x = 19,718,351,977.47/160,575.90
  6. Step 6: Final answer
    x = 122,797.70

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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.