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Finding the Fourth Proportional to 74,419.65, 111,498.80 and 62,019.09

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Solution

The fourth proportional to 74,419.65, 111,498.80 and 62,019.09 is: 92,919.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,419.65 : 111,498.80 = 62,019.09 : x
  2. Step 2: Convert to fraction form
    74,419.65/111,498.80 = 62,019.09/x
  3. Step 3: Cross multiply
    74,419.65x = 111,498.80 × 62,019.09
  4. Step 4: Simplify right side
    74,419.65x = 6,915,053,802.00
  5. Step 5: Solve for x
    x = 6,915,053,802.00/74,419.65
  6. Step 6: Final answer
    x = 92,919.73

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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.