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Finding the Fourth Proportional to 97,357.90, 134,353.86 and 52,645.90

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Solution

The fourth proportional to 97,357.90, 134,353.86 and 52,645.90 is: 72,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,357.90 : 134,353.86 = 52,645.90 : x
  2. Step 2: Convert to fraction form
    97,357.90/134,353.86 = 52,645.90/x
  3. Step 3: Cross multiply
    97,357.90x = 134,353.86 × 52,645.90
  4. Step 4: Simplify right side
    97,357.90x = 7,073,179,878.17
  5. Step 5: Solve for x
    x = 7,073,179,878.17/97,357.90
  6. Step 6: Final answer
    x = 72,651.32

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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.