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Finding the Fourth Proportional to 249,167.39, 343,810.44 and 147,178.70

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Solution

The fourth proportional to 249,167.39, 343,810.44 and 147,178.70 is: 203,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,167.39 : 343,810.44 = 147,178.70 : x
  2. Step 2: Convert to fraction form
    249,167.39/343,810.44 = 147,178.70/x
  3. Step 3: Cross multiply
    249,167.39x = 343,810.44 × 147,178.70
  4. Step 4: Simplify right side
    249,167.39x = 50,601,571,886.58
  5. Step 5: Solve for x
    x = 50,601,571,886.58/249,167.39
  6. Step 6: Final answer
    x = 203,082.65

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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.