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Finding the Fourth Proportional to 173,811.60, 260,746.20 and 74,019.60

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Solution

The fourth proportional to 173,811.60, 260,746.20 and 74,019.60 is: 111,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,811.60 : 260,746.20 = 74,019.60 : x
  2. Step 2: Convert to fraction form
    173,811.60/260,746.20 = 74,019.60/x
  3. Step 3: Cross multiply
    173,811.60x = 260,746.20 × 74,019.60
  4. Step 4: Simplify right side
    173,811.60x = 19,300,329,425.52
  5. Step 5: Solve for x
    x = 19,300,329,425.52/173,811.60
  6. Step 6: Final answer
    x = 111,041.66

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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.