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Finding the Fourth Proportional to 249,805.16, 344,739.30 and 136,627.90

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Solution

The fourth proportional to 249,805.16, 344,739.30 and 136,627.90 is: 188,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,805.16 : 344,739.30 = 136,627.90 : x
  2. Step 2: Convert to fraction form
    249,805.16/344,739.30 = 136,627.90/x
  3. Step 3: Cross multiply
    249,805.16x = 344,739.30 × 136,627.90
  4. Step 4: Simplify right side
    249,805.16x = 47,101,006,606.47
  5. Step 5: Solve for x
    x = 47,101,006,606.47/249,805.16
  6. Step 6: Final answer
    x = 188,550.98

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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.