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Finding the Fourth Proportional to 79,197.40, 118,577.40 and 61,701.40

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Solution

The fourth proportional to 79,197.40, 118,577.40 and 61,701.40 is: 92,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,197.40 : 118,577.40 = 61,701.40 : x
  2. Step 2: Convert to fraction form
    79,197.40/118,577.40 = 61,701.40/x
  3. Step 3: Cross multiply
    79,197.40x = 118,577.40 × 61,701.40
  4. Step 4: Simplify right side
    79,197.40x = 7,316,391,588.36
  5. Step 5: Solve for x
    x = 7,316,391,588.36/79,197.40
  6. Step 6: Final answer
    x = 92,381.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.