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Finding the Fourth Proportional to 250,055.91, 345,055.31 and 148,063.11

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Solution

The fourth proportional to 250,055.91, 345,055.31 and 148,063.11 is: 204,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,055.91 : 345,055.31 = 148,063.11 : x
  2. Step 2: Convert to fraction form
    250,055.91/345,055.31 = 148,063.11/x
  3. Step 3: Cross multiply
    250,055.91x = 345,055.31 × 148,063.11
  4. Step 4: Simplify right side
    250,055.91x = 51,089,962,320.61
  5. Step 5: Solve for x
    x = 51,089,962,320.61/250,055.91
  6. Step 6: Final answer
    x = 204,314.16

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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.