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Finding the Fourth Proportional to 249,047.62, 343,685.38 and 135,870.38

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Solution

The fourth proportional to 249,047.62, 343,685.38 and 135,870.38 is: 187,500.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,047.62 : 343,685.38 = 135,870.38 : x
  2. Step 2: Convert to fraction form
    249,047.62/343,685.38 = 135,870.38/x
  3. Step 3: Cross multiply
    249,047.62x = 343,685.38 × 135,870.38
  4. Step 4: Simplify right side
    249,047.62x = 46,696,663,181.04
  5. Step 5: Solve for x
    x = 46,696,663,181.04/249,047.62
  6. Step 6: Final answer
    x = 187,500.94

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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.