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Finding the Fourth Proportional to 160,840.01, 221,985.84 and 89,243.10

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Solution

The fourth proportional to 160,840.01, 221,985.84 and 89,243.10 is: 123,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,840.01 : 221,985.84 = 89,243.10 : x
  2. Step 2: Convert to fraction form
    160,840.01/221,985.84 = 89,243.10/x
  3. Step 3: Cross multiply
    160,840.01x = 221,985.84 × 89,243.10
  4. Step 4: Simplify right side
    160,840.01x = 19,810,704,183.04
  5. Step 5: Solve for x
    x = 19,810,704,183.04/160,840.01
  6. Step 6: Final answer
    x = 123,170.25

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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.