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Finding the Fourth Proportional to 97,387.72, 134,399.06 and 54,946.04

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Solution

The fourth proportional to 97,387.72, 134,399.06 and 54,946.04 is: 75,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,387.72 : 134,399.06 = 54,946.04 : x
  2. Step 2: Convert to fraction form
    97,387.72/134,399.06 = 54,946.04/x
  3. Step 3: Cross multiply
    97,387.72x = 134,399.06 × 54,946.04
  4. Step 4: Simplify right side
    97,387.72x = 7,384,696,126.72
  5. Step 5: Solve for x
    x = 7,384,696,126.72/97,387.72
  6. Step 6: Final answer
    x = 75,827.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.