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Finding the Fourth Proportional to 161,963.34, 223,507.91 and 89,366.90

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Solution

The fourth proportional to 161,963.34, 223,507.91 and 89,366.90 is: 123,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,963.34 : 223,507.91 = 89,366.90 : x
  2. Step 2: Convert to fraction form
    161,963.34/223,507.91 = 89,366.90/x
  3. Step 3: Cross multiply
    161,963.34x = 223,507.91 × 89,366.90
  4. Step 4: Simplify right side
    161,963.34x = 19,974,209,042.18
  5. Step 5: Solve for x
    x = 19,974,209,042.18/161,963.34
  6. Step 6: Final answer
    x = 123,325.49

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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.