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Finding the Fourth Proportional to 250,412.78, 375,619.78 and 72,924.10

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Solution

The fourth proportional to 250,412.78, 375,619.78 and 72,924.10 is: 109,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,412.78 : 375,619.78 = 72,924.10 : x
  2. Step 2: Convert to fraction form
    250,412.78/375,619.78 = 72,924.10/x
  3. Step 3: Cross multiply
    250,412.78x = 375,619.78 × 72,924.10
  4. Step 4: Simplify right side
    250,412.78x = 27,391,733,550.80
  5. Step 5: Solve for x
    x = 27,391,733,550.80/250,412.78
  6. Step 6: Final answer
    x = 109,386.32

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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.