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Finding the Fourth Proportional to 249,402.60, 344,171.70 and 136,222.92

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Solution

The fourth proportional to 249,402.60, 344,171.70 and 136,222.92 is: 187,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,402.60 : 344,171.70 = 136,222.92 : x
  2. Step 2: Convert to fraction form
    249,402.60/344,171.70 = 136,222.92/x
  3. Step 3: Cross multiply
    249,402.60x = 344,171.70 × 136,222.92
  4. Step 4: Simplify right side
    249,402.60x = 46,884,073,955.36
  5. Step 5: Solve for x
    x = 46,884,073,955.36/249,402.60
  6. Step 6: Final answer
    x = 187,985.51

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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.