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Finding the Fourth Proportional to 249,224.76, 343,930.92 and 136,049.40

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Solution

The fourth proportional to 249,224.76, 343,930.92 and 136,049.40 is: 187,748.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,224.76 : 343,930.92 = 136,049.40 : x
  2. Step 2: Convert to fraction form
    249,224.76/343,930.92 = 136,049.40/x
  3. Step 3: Cross multiply
    249,224.76x = 343,930.92 × 136,049.40
  4. Step 4: Simplify right side
    249,224.76x = 46,791,595,307.45
  5. Step 5: Solve for x
    x = 46,791,595,307.45/249,224.76
  6. Step 6: Final answer
    x = 187,748.58

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1.5x scale

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.