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Finding the Fourth Proportional to 173,870.60, 260,903.10 and 74,013.80

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Solution

The fourth proportional to 173,870.60, 260,903.10 and 74,013.80 is: 111,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,870.60 : 260,903.10 = 74,013.80 : x
  2. Step 2: Convert to fraction form
    173,870.60/260,903.10 = 74,013.80/x
  3. Step 3: Cross multiply
    173,870.60x = 260,903.10 × 74,013.80
  4. Step 4: Simplify right side
    173,870.60x = 19,310,429,862.78
  5. Step 5: Solve for x
    x = 19,310,429,862.78/173,870.60
  6. Step 6: Final answer
    x = 111,062.08

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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.