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Finding the Fourth Proportional to 249,196.80, 343,891.60 and 136,019.56

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Solution

The fourth proportional to 249,196.80, 343,891.60 and 136,019.56 is: 187,707.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,196.80 : 343,891.60 = 136,019.56 : x
  2. Step 2: Convert to fraction form
    249,196.80/343,891.60 = 136,019.56/x
  3. Step 3: Cross multiply
    249,196.80x = 343,891.60 × 136,019.56
  4. Step 4: Simplify right side
    249,196.80x = 46,775,984,119.70
  5. Step 5: Solve for x
    x = 46,775,984,119.70/249,196.80
  6. Step 6: Final answer
    x = 187,707.00

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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.