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Finding the Fourth Proportional to 91,673.68, 137,510.64 and 25,114.40

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Solution

The fourth proportional to 91,673.68, 137,510.64 and 25,114.40 is: 37,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,673.68 : 137,510.64 = 25,114.40 : x
  2. Step 2: Convert to fraction form
    91,673.68/137,510.64 = 25,114.40/x
  3. Step 3: Cross multiply
    91,673.68x = 137,510.64 × 25,114.40
  4. Step 4: Simplify right side
    91,673.68x = 3,453,497,217.22
  5. Step 5: Solve for x
    x = 3,453,497,217.22/91,673.68
  6. Step 6: Final answer
    x = 37,671.63

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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.