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Finding the Fourth Proportional to 74,242.74, 111,364.11 and 61,055.13

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Solution

The fourth proportional to 74,242.74, 111,364.11 and 61,055.13 is: 91,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,242.74 : 111,364.11 = 61,055.13 : x
  2. Step 2: Convert to fraction form
    74,242.74/111,364.11 = 61,055.13/x
  3. Step 3: Cross multiply
    74,242.74x = 111,364.11 × 61,055.13
  4. Step 4: Simplify right side
    74,242.74x = 6,799,350,213.38
  5. Step 5: Solve for x
    x = 6,799,350,213.38/74,242.74
  6. Step 6: Final answer
    x = 91,582.70

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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.