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Finding the Fourth Proportional to 249,295.74, 343,853.55 and 168,687.78

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Solution

The fourth proportional to 249,295.74, 343,853.55 and 168,687.78 is: 232,671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,295.74 : 343,853.55 = 168,687.78 : x
  2. Step 2: Convert to fraction form
    249,295.74/343,853.55 = 168,687.78/x
  3. Step 3: Cross multiply
    249,295.74x = 343,853.55 × 168,687.78
  4. Step 4: Simplify right side
    249,295.74x = 58,003,891,994.62
  5. Step 5: Solve for x
    x = 58,003,891,994.62/249,295.74
  6. Step 6: Final answer
    x = 232,671.01

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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.