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Finding the Fourth Proportional to 97,292.79, 145,939.59 and 27,172.71

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Solution

The fourth proportional to 97,292.79, 145,939.59 and 27,172.71 is: 40,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,292.79 : 145,939.59 = 27,172.71 : x
  2. Step 2: Convert to fraction form
    97,292.79/145,939.59 = 27,172.71/x
  3. Step 3: Cross multiply
    97,292.79x = 145,939.59 × 27,172.71
  4. Step 4: Simplify right side
    97,292.79x = 3,965,574,156.59
  5. Step 5: Solve for x
    x = 3,965,574,156.59/97,292.79
  6. Step 6: Final answer
    x = 40,759.18

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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.