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Finding the Fourth Proportional to 79,253.40, 118,814.58 and 61,800.60

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Solution

The fourth proportional to 79,253.40, 118,814.58 and 61,800.60 is: 92,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,253.40 : 118,814.58 = 61,800.60 : x
  2. Step 2: Convert to fraction form
    79,253.40/118,814.58 = 61,800.60/x
  3. Step 3: Cross multiply
    79,253.40x = 118,814.58 × 61,800.60
  4. Step 4: Simplify right side
    79,253.40x = 7,342,812,332.75
  5. Step 5: Solve for x
    x = 7,342,812,332.75/79,253.40
  6. Step 6: Final answer
    x = 92,649.81

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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.