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Finding the Fourth Proportional to 249,425.53, 374,126.95 and 91,642.39

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Solution

The fourth proportional to 249,425.53, 374,126.95 and 91,642.39 is: 137,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,425.53 : 374,126.95 = 91,642.39 : x
  2. Step 2: Convert to fraction form
    249,425.53/374,126.95 = 91,642.39/x
  3. Step 3: Cross multiply
    249,425.53x = 374,126.95 × 91,642.39
  4. Step 4: Simplify right side
    249,425.53x = 34,285,887,861.41
  5. Step 5: Solve for x
    x = 34,285,887,861.41/249,425.53
  6. Step 6: Final answer
    x = 137,459.42

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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.