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Finding the Fourth Proportional to 249,043.88, 343,678.95 and 141,613.91

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Solution

The fourth proportional to 249,043.88, 343,678.95 and 141,613.91 is: 195,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,043.88 : 343,678.95 = 141,613.91 : x
  2. Step 2: Convert to fraction form
    249,043.88/343,678.95 = 141,613.91/x
  3. Step 3: Cross multiply
    249,043.88x = 343,678.95 × 141,613.91
  4. Step 4: Simplify right side
    249,043.88x = 48,669,719,894.19
  5. Step 5: Solve for x
    x = 48,669,719,894.19/249,043.88
  6. Step 6: Final answer
    x = 195,426.28

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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.