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Finding the Fourth Proportional to 173,836.17, 260,871.12 and 61,515.90

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Solution

The fourth proportional to 173,836.17, 260,871.12 and 61,515.90 is: 92,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,836.17 : 260,871.12 = 61,515.90 : x
  2. Step 2: Convert to fraction form
    173,836.17/260,871.12 = 61,515.90/x
  3. Step 3: Cross multiply
    173,836.17x = 260,871.12 × 61,515.90
  4. Step 4: Simplify right side
    173,836.17x = 16,047,721,730.81
  5. Step 5: Solve for x
    x = 16,047,721,730.81/173,836.17
  6. Step 6: Final answer
    x = 92,315.21

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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.