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Finding the Fourth Proportional to 249,034.45, 343,665.86 and 141,604.45

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Solution

The fourth proportional to 249,034.45, 343,665.86 and 141,604.45 is: 195,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,034.45 : 343,665.86 = 141,604.45 : x
  2. Step 2: Convert to fraction form
    249,034.45/343,665.86 = 141,604.45/x
  3. Step 3: Cross multiply
    249,034.45x = 343,665.86 × 141,604.45
  4. Step 4: Simplify right side
    249,034.45x = 48,664,616,649.80
  5. Step 5: Solve for x
    x = 48,664,616,649.80/249,034.45
  6. Step 6: Final answer
    x = 195,413.19

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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.