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Finding the Fourth Proportional to 249,218.80, 343,929.36 and 141,768.88

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Solution

The fourth proportional to 249,218.80, 343,929.36 and 141,768.88 is: 195,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,218.80 : 343,929.36 = 141,768.88 : x
  2. Step 2: Convert to fraction form
    249,218.80/343,929.36 = 141,768.88/x
  3. Step 3: Cross multiply
    249,218.80x = 343,929.36 × 141,768.88
  4. Step 4: Simplify right side
    249,218.80x = 48,758,480,166.32
  5. Step 5: Solve for x
    x = 48,758,480,166.32/249,218.80
  6. Step 6: Final answer
    x = 195,645.27

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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.