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Finding the Fourth Proportional to 249,049.40, 343,686.54 and 141,619.44

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Solution

The fourth proportional to 249,049.40, 343,686.54 and 141,619.44 is: 195,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,049.40 : 343,686.54 = 141,619.44 : x
  2. Step 2: Convert to fraction form
    249,049.40/343,686.54 = 141,619.44/x
  3. Step 3: Cross multiply
    249,049.40x = 343,686.54 × 141,619.44
  4. Step 4: Simplify right side
    249,049.40x = 48,672,695,330.34
  5. Step 5: Solve for x
    x = 48,672,695,330.34/249,049.40
  6. Step 6: Final answer
    x = 195,433.90

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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.