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Finding the Fourth Proportional to 249,311.62, 373,745.43 and 91,503.46

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Solution

The fourth proportional to 249,311.62, 373,745.43 and 91,503.46 is: 137,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,311.62 : 373,745.43 = 91,503.46 : x
  2. Step 2: Convert to fraction form
    249,311.62/373,745.43 = 91,503.46/x
  3. Step 3: Cross multiply
    249,311.62x = 373,745.43 × 91,503.46
  4. Step 4: Simplify right side
    249,311.62x = 34,199,000,004.19
  5. Step 5: Solve for x
    x = 34,199,000,004.19/249,311.62
  6. Step 6: Final answer
    x = 137,173.71

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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.