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Finding the Fourth Proportional to 249,074.64, 343,321.47 and 168,472.76

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Solution

The fourth proportional to 249,074.64, 343,321.47 and 168,472.76 is: 232,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,074.64 : 343,321.47 = 168,472.76 : x
  2. Step 2: Convert to fraction form
    249,074.64/343,321.47 = 168,472.76/x
  3. Step 3: Cross multiply
    249,074.64x = 343,321.47 × 168,472.76
  4. Step 4: Simplify right side
    249,074.64x = 57,840,313,901.55
  5. Step 5: Solve for x
    x = 57,840,313,901.55/249,074.64
  6. Step 6: Final answer
    x = 232,220.81

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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.