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Finding the Fourth Proportional to 249,898.60, 374,867.34 and 72,408.16

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Solution

The fourth proportional to 249,898.60, 374,867.34 and 72,408.16 is: 108,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,898.60 : 374,867.34 = 72,408.16 : x
  2. Step 2: Convert to fraction form
    249,898.60/374,867.34 = 72,408.16/x
  3. Step 3: Cross multiply
    249,898.60x = 374,867.34 × 72,408.16
  4. Step 4: Simplify right side
    249,898.60x = 27,143,454,333.49
  5. Step 5: Solve for x
    x = 27,143,454,333.49/249,898.60
  6. Step 6: Final answer
    x = 108,617.87

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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.