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Finding the Fourth Proportional to 249,017.97, 343,756.11 and 168,689.46

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Solution

The fourth proportional to 249,017.97, 343,756.11 and 168,689.46 is: 232,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,017.97 : 343,756.11 = 168,689.46 : x
  2. Step 2: Convert to fraction form
    249,017.97/343,756.11 = 168,689.46/x
  3. Step 3: Cross multiply
    249,017.97x = 343,756.11 × 168,689.46
  4. Step 4: Simplify right side
    249,017.97x = 57,988,032,567.60
  5. Step 5: Solve for x
    x = 57,988,032,567.60/249,017.97
  6. Step 6: Final answer
    x = 232,866.86

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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.