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Finding the Fourth Proportional to 61,810.20, 92,715.30 and 60,716.70

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Solution

The fourth proportional to 61,810.20, 92,715.30 and 60,716.70 is: 91,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,810.20 : 92,715.30 = 60,716.70 : x
  2. Step 2: Convert to fraction form
    61,810.20/92,715.30 = 60,716.70/x
  3. Step 3: Cross multiply
    61,810.20x = 92,715.30 × 60,716.70
  4. Step 4: Simplify right side
    61,810.20x = 5,629,367,055.51
  5. Step 5: Solve for x
    x = 5,629,367,055.51/61,810.20
  6. Step 6: Final answer
    x = 91,075.05

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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.