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Finding the Fourth Proportional to 91,673.69, 137,510.64 and 25,114.40

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Solution

The fourth proportional to 91,673.69, 137,510.64 and 25,114.40 is: 37,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,673.69 : 137,510.64 = 25,114.40 : x
  2. Step 2: Convert to fraction form
    91,673.69/137,510.64 = 25,114.40/x
  3. Step 3: Cross multiply
    91,673.69x = 137,510.64 × 25,114.40
  4. Step 4: Simplify right side
    91,673.69x = 3,453,496,529.66
  5. Step 5: Solve for x
    x = 3,453,496,529.66/91,673.69
  6. Step 6: Final answer
    x = 37,671.62

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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.