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Finding the Fourth Proportional to 249,638.71, 344,500.95 and 136,461.46

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Solution

The fourth proportional to 249,638.71, 344,500.95 and 136,461.46 is: 188,316.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,638.71 : 344,500.95 = 136,461.46 : x
  2. Step 2: Convert to fraction form
    249,638.71/344,500.95 = 136,461.46/x
  3. Step 3: Cross multiply
    249,638.71x = 344,500.95 × 136,461.46
  4. Step 4: Simplify right side
    249,638.71x = 47,011,102,608.39
  5. Step 5: Solve for x
    x = 47,011,102,608.39/249,638.71
  6. Step 6: Final answer
    x = 188,316.56

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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.