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Finding the Fourth Proportional to 144,614.61, 216,915.53 and 39,433.59

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Solution

The fourth proportional to 144,614.61, 216,915.53 and 39,433.59 is: 59,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,614.61 : 216,915.53 = 39,433.59 : x
  2. Step 2: Convert to fraction form
    144,614.61/216,915.53 = 39,433.59/x
  3. Step 3: Cross multiply
    144,614.61x = 216,915.53 × 39,433.59
  4. Step 4: Simplify right side
    144,614.61x = 8,553,757,877.48
  5. Step 5: Solve for x
    x = 8,553,757,877.48/144,614.61
  6. Step 6: Final answer
    x = 59,148.64

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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.