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Finding the Fourth Proportional to 161,369.16, 222,683.88 and 89,747.76

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Solution

The fourth proportional to 161,369.16, 222,683.88 and 89,747.76 is: 123,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,369.16 : 222,683.88 = 89,747.76 : x
  2. Step 2: Convert to fraction form
    161,369.16/222,683.88 = 89,747.76/x
  3. Step 3: Cross multiply
    161,369.16x = 222,683.88 × 89,747.76
  4. Step 4: Simplify right side
    161,369.16x = 19,985,379,418.11
  5. Step 5: Solve for x
    x = 19,985,379,418.11/161,369.16
  6. Step 6: Final answer
    x = 123,848.82

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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.