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Finding the Fourth Proportional to 91,061.81, 136,514.80 and 34,942.19

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Solution

The fourth proportional to 91,061.81, 136,514.80 and 34,942.19 is: 52,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,061.81 : 136,514.80 = 34,942.19 : x
  2. Step 2: Convert to fraction form
    91,061.81/136,514.80 = 34,942.19/x
  3. Step 3: Cross multiply
    91,061.81x = 136,514.80 × 34,942.19
  4. Step 4: Simplify right side
    91,061.81x = 4,770,125,222.13
  5. Step 5: Solve for x
    x = 4,770,125,222.13/91,061.81
  6. Step 6: Final answer
    x = 52,383.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.