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Finding the Fourth Proportional to 113,800.60, 170,895.30 and 61,312.60

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Solution

The fourth proportional to 113,800.60, 170,895.30 and 61,312.60 is: 92,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,800.60 : 170,895.30 = 61,312.60 : x
  2. Step 2: Convert to fraction form
    113,800.60/170,895.30 = 61,312.60/x
  3. Step 3: Cross multiply
    113,800.60x = 170,895.30 × 61,312.60
  4. Step 4: Simplify right side
    113,800.60x = 10,478,035,170.78
  5. Step 5: Solve for x
    x = 10,478,035,170.78/113,800.60
  6. Step 6: Final answer
    x = 92,073.64

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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.