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Finding the Fourth Proportional to 265,353.68, 398,186.04 and 190,393.04

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Solution

The fourth proportional to 265,353.68, 398,186.04 and 190,393.04 is: 285,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,353.68 : 398,186.04 = 190,393.04 : x
  2. Step 2: Convert to fraction form
    265,353.68/398,186.04 = 190,393.04/x
  3. Step 3: Cross multiply
    265,353.68x = 398,186.04 × 190,393.04
  4. Step 4: Simplify right side
    265,353.68x = 75,811,850,641.16
  5. Step 5: Solve for x
    x = 75,811,850,641.16/265,353.68
  6. Step 6: Final answer
    x = 285,701.15

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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.