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Finding the Fourth Proportional to 249,937.59, 344,912.43 and 135,215.87

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Solution

The fourth proportional to 249,937.59, 344,912.43 and 135,215.87 is: 186,597.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,937.59 : 344,912.43 = 135,215.87 : x
  2. Step 2: Convert to fraction form
    249,937.59/344,912.43 = 135,215.87/x
  3. Step 3: Cross multiply
    249,937.59x = 344,912.43 × 135,215.87
  4. Step 4: Simplify right side
    249,937.59x = 46,637,635,158.55
  5. Step 5: Solve for x
    x = 46,637,635,158.55/249,937.59
  6. Step 6: Final answer
    x = 186,597.12

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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.