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Finding the Fourth Proportional to 97,367.40, 134,395.80 and 57,089.88

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Solution

The fourth proportional to 97,367.40, 134,395.80 and 57,089.88 is: 78,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,367.40 : 134,395.80 = 57,089.88 : x
  2. Step 2: Convert to fraction form
    97,367.40/134,395.80 = 57,089.88/x
  3. Step 3: Cross multiply
    97,367.40x = 134,395.80 × 57,089.88
  4. Step 4: Simplify right side
    97,367.40x = 7,672,640,094.50
  5. Step 5: Solve for x
    x = 7,672,640,094.50/97,367.40
  6. Step 6: Final answer
    x = 78,800.91

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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.