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Finding the Fourth Proportional to 97,371.79, 134,395.49 and 57,098.53

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Solution

The fourth proportional to 97,371.79, 134,395.49 and 57,098.53 is: 78,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,371.79 : 134,395.49 = 57,098.53 : x
  2. Step 2: Convert to fraction form
    97,371.79/134,395.49 = 57,098.53/x
  3. Step 3: Cross multiply
    97,371.79x = 134,395.49 × 57,098.53
  4. Step 4: Simplify right side
    97,371.79x = 7,673,784,258.28
  5. Step 5: Solve for x
    x = 7,673,784,258.28/97,371.79
  6. Step 6: Final answer
    x = 78,809.11

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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.