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Finding the Fourth Proportional to 249,127.30, 343,793.78 and 141,697.20

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Solution

The fourth proportional to 249,127.30, 343,793.78 and 141,697.20 is: 195,541.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,127.30 : 343,793.78 = 141,697.20 : x
  2. Step 2: Convert to fraction form
    249,127.30/343,793.78 = 141,697.20/x
  3. Step 3: Cross multiply
    249,127.30x = 343,793.78 × 141,697.20
  4. Step 4: Simplify right side
    249,127.30x = 48,714,616,003.42
  5. Step 5: Solve for x
    x = 48,714,616,003.42/249,127.30
  6. Step 6: Final answer
    x = 195,541.06

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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.