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Finding the Fourth Proportional to 160,730.96, 221,809.56 and 92,750.78

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Solution

The fourth proportional to 160,730.96, 221,809.56 and 92,750.78 is: 127,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,730.96 : 221,809.56 = 92,750.78 : x
  2. Step 2: Convert to fraction form
    160,730.96/221,809.56 = 92,750.78/x
  3. Step 3: Cross multiply
    160,730.96x = 221,809.56 × 92,750.78
  4. Step 4: Simplify right side
    160,730.96x = 20,573,009,701.46
  5. Step 5: Solve for x
    x = 20,573,009,701.46/160,730.96
  6. Step 6: Final answer
    x = 127,996.56

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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.