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Finding the Fourth Proportional to 97,503.60, 134,617.50 and 79,641.48

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Solution

The fourth proportional to 97,503.60, 134,617.50 and 79,641.48 is: 109,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,503.60 : 134,617.50 = 79,641.48 : x
  2. Step 2: Convert to fraction form
    97,503.60/134,617.50 = 79,641.48/x
  3. Step 3: Cross multiply
    97,503.60x = 134,617.50 × 79,641.48
  4. Step 4: Simplify right side
    97,503.60x = 10,721,136,933.90
  5. Step 5: Solve for x
    x = 10,721,136,933.90/97,503.60
  6. Step 6: Final answer
    x = 109,956.32

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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.