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Finding the Fourth Proportional to 160,605.13, 221,642.18 and 88,985.13

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Solution

The fourth proportional to 160,605.13, 221,642.18 and 88,985.13 is: 122,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,605.13 : 221,642.18 = 88,985.13 : x
  2. Step 2: Convert to fraction form
    160,605.13/221,642.18 = 88,985.13/x
  3. Step 3: Cross multiply
    160,605.13x = 221,642.18 × 88,985.13
  4. Step 4: Simplify right side
    160,605.13x = 19,722,858,200.78
  5. Step 5: Solve for x
    x = 19,722,858,200.78/160,605.13
  6. Step 6: Final answer
    x = 122,803.41

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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.