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Finding the Fourth Proportional to 160,420.98, 221,386.17 and 92,432.68

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Solution

The fourth proportional to 160,420.98, 221,386.17 and 92,432.68 is: 127,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.98 : 221,386.17 = 92,432.68 : x
  2. Step 2: Convert to fraction form
    160,420.98/221,386.17 = 92,432.68/x
  3. Step 3: Cross multiply
    160,420.98x = 221,386.17 × 92,432.68
  4. Step 4: Simplify right side
    160,420.98x = 20,463,317,008.04
  5. Step 5: Solve for x
    x = 20,463,317,008.04/160,420.98
  6. Step 6: Final answer
    x = 127,560.10

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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.