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Finding the Fourth Proportional to 249,145.92, 343,830.88 and 141,725.92

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Solution

The fourth proportional to 249,145.92, 343,830.88 and 141,725.92 is: 195,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,145.92 : 343,830.88 = 141,725.92 : x
  2. Step 2: Convert to fraction form
    249,145.92/343,830.88 = 141,725.92/x
  3. Step 3: Cross multiply
    249,145.92x = 343,830.88 × 141,725.92
  4. Step 4: Simplify right side
    249,145.92x = 48,729,747,792.41
  5. Step 5: Solve for x
    x = 48,729,747,792.41/249,145.92
  6. Step 6: Final answer
    x = 195,587.18

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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.