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Finding the Fourth Proportional to 160,763.58, 221,809.17 and 92,775.78

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Solution

The fourth proportional to 160,763.58, 221,809.17 and 92,775.78 is: 128,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,763.58 : 221,809.17 = 92,775.78 : x
  2. Step 2: Convert to fraction form
    160,763.58/221,809.17 = 92,775.78/x
  3. Step 3: Cross multiply
    160,763.58x = 221,809.17 × 92,775.78
  4. Step 4: Simplify right side
    160,763.58x = 20,578,518,757.90
  5. Step 5: Solve for x
    x = 20,578,518,757.90/160,763.58
  6. Step 6: Final answer
    x = 128,004.86

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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.