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Finding the Fourth Proportional to 264,811.60, 396,871.80 and 190,853.20

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Solution

The fourth proportional to 264,811.60, 396,871.80 and 190,853.20 is: 286,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,811.60 : 396,871.80 = 190,853.20 : x
  2. Step 2: Convert to fraction form
    264,811.60/396,871.80 = 190,853.20/x
  3. Step 3: Cross multiply
    264,811.60x = 396,871.80 × 190,853.20
  4. Step 4: Simplify right side
    264,811.60x = 75,744,253,019.76
  5. Step 5: Solve for x
    x = 75,744,253,019.76/264,811.60
  6. Step 6: Final answer
    x = 286,030.72

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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.