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Finding the Fourth Proportional to 249,062.64, 343,692.36 and 141,658.80

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Solution

The fourth proportional to 249,062.64, 343,692.36 and 141,658.80 is: 195,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,062.64 : 343,692.36 = 141,658.80 : x
  2. Step 2: Convert to fraction form
    249,062.64/343,692.36 = 141,658.80/x
  3. Step 3: Cross multiply
    249,062.64x = 343,692.36 × 141,658.80
  4. Step 4: Simplify right side
    249,062.64x = 48,687,047,286.77
  5. Step 5: Solve for x
    x = 48,687,047,286.77/249,062.64
  6. Step 6: Final answer
    x = 195,481.13

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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.