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Finding the Fourth Proportional to 249,171.76, 373,806.87 and 91,401.58

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Solution

The fourth proportional to 249,171.76, 373,806.87 and 91,401.58 is: 137,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,171.76 : 373,806.87 = 91,401.58 : x
  2. Step 2: Convert to fraction form
    249,171.76/373,806.87 = 91,401.58/x
  3. Step 3: Cross multiply
    249,171.76x = 373,806.87 × 91,401.58
  4. Step 4: Simplify right side
    249,171.76x = 34,166,538,532.85
  5. Step 5: Solve for x
    x = 34,166,538,532.85/249,171.76
  6. Step 6: Final answer
    x = 137,120.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.