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Finding the Fourth Proportional to 173,563.39, 260,368.37 and 61,217.20

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Solution

The fourth proportional to 173,563.39, 260,368.37 and 61,217.20 is: 91,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,563.39 : 260,368.37 = 61,217.20 : x
  2. Step 2: Convert to fraction form
    173,563.39/260,368.37 = 61,217.20/x
  3. Step 3: Cross multiply
    173,563.39x = 260,368.37 × 61,217.20
  4. Step 4: Simplify right side
    173,563.39x = 15,939,020,972.04
  5. Step 5: Solve for x
    x = 15,939,020,972.04/173,563.39
  6. Step 6: Final answer
    x = 91,834.01

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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.