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Finding the Fourth Proportional to 73,929.60, 110,870.10 and 27,176.40

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Solution

The fourth proportional to 73,929.60, 110,870.10 and 27,176.40 is: 40,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,929.60 : 110,870.10 = 27,176.40 : x
  2. Step 2: Convert to fraction form
    73,929.60/110,870.10 = 27,176.40/x
  3. Step 3: Cross multiply
    73,929.60x = 110,870.10 × 27,176.40
  4. Step 4: Simplify right side
    73,929.60x = 3,013,050,185.64
  5. Step 5: Solve for x
    x = 3,013,050,185.64/73,929.60
  6. Step 6: Final answer
    x = 40,755.67

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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.