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Finding the Fourth Proportional to 249,572.64, 344,471.43 and 142,205.92

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Solution

The fourth proportional to 249,572.64, 344,471.43 and 142,205.92 is: 196,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,572.64 : 344,471.43 = 142,205.92 : x
  2. Step 2: Convert to fraction form
    249,572.64/344,471.43 = 142,205.92/x
  3. Step 3: Cross multiply
    249,572.64x = 344,471.43 × 142,205.92
  4. Step 4: Simplify right side
    249,572.64x = 48,985,876,616.87
  5. Step 5: Solve for x
    x = 48,985,876,616.87/249,572.64
  6. Step 6: Final answer
    x = 196,279.03

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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.