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Finding the Fourth Proportional to 249,652.44, 344,520.72 and 136,475.28

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Solution

The fourth proportional to 249,652.44, 344,520.72 and 136,475.28 is: 188,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,652.44 : 344,520.72 = 136,475.28 : x
  2. Step 2: Convert to fraction form
    249,652.44/344,520.72 = 136,475.28/x
  3. Step 3: Cross multiply
    249,652.44x = 344,520.72 × 136,475.28
  4. Step 4: Simplify right side
    249,652.44x = 47,018,561,727.80
  5. Step 5: Solve for x
    x = 47,018,561,727.80/249,652.44
  6. Step 6: Final answer
    x = 188,336.08

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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.