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Finding the Fourth Proportional to 61,133.70, 91,700.55 and 50,636.10

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Solution

The fourth proportional to 61,133.70, 91,700.55 and 50,636.10 is: 75,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,133.70 : 91,700.55 = 50,636.10 : x
  2. Step 2: Convert to fraction form
    61,133.70/91,700.55 = 50,636.10/x
  3. Step 3: Cross multiply
    61,133.70x = 91,700.55 × 50,636.10
  4. Step 4: Simplify right side
    61,133.70x = 4,643,358,219.86
  5. Step 5: Solve for x
    x = 4,643,358,219.86/61,133.70
  6. Step 6: Final answer
    x = 75,954.15

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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.