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Finding the Fourth Proportional to 111,902.67, 154,427.66 and 60,916.86

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Solution

The fourth proportional to 111,902.67, 154,427.66 and 60,916.86 is: 84,066.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,902.67 : 154,427.66 = 60,916.86 : x
  2. Step 2: Convert to fraction form
    111,902.67/154,427.66 = 60,916.86/x
  3. Step 3: Cross multiply
    111,902.67x = 154,427.66 × 60,916.86
  4. Step 4: Simplify right side
    111,902.67x = 9,407,247,839.76
  5. Step 5: Solve for x
    x = 9,407,247,839.76/111,902.67
  6. Step 6: Final answer
    x = 84,066.34

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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.