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Finding the Fourth Proportional to 249,195.87, 343,878.35 and 141,755.85

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Solution

The fourth proportional to 249,195.87, 343,878.35 and 141,755.85 is: 195,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,195.87 : 343,878.35 = 141,755.85 : x
  2. Step 2: Convert to fraction form
    249,195.87/343,878.35 = 141,755.85/x
  3. Step 3: Cross multiply
    249,195.87x = 343,878.35 × 141,755.85
  4. Step 4: Simplify right side
    249,195.87x = 48,746,767,092.07
  5. Step 5: Solve for x
    x = 48,746,767,092.07/249,195.87
  6. Step 6: Final answer
    x = 195,616.27

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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.