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Finding the Fourth Proportional to 97,573.74, 134,603.52 and 67,389.90

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Solution

The fourth proportional to 97,573.74, 134,603.52 and 67,389.90 is: 92,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,573.74 : 134,603.52 = 67,389.90 : x
  2. Step 2: Convert to fraction form
    97,573.74/134,603.52 = 67,389.90/x
  3. Step 3: Cross multiply
    97,573.74x = 134,603.52 × 67,389.90
  4. Step 4: Simplify right side
    97,573.74x = 9,070,917,752.45
  5. Step 5: Solve for x
    x = 9,070,917,752.45/97,573.74
  6. Step 6: Final answer
    x = 92,964.74

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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.