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Finding the Fourth Proportional to 115,424.40, 173,152.80 and 36,530.40

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Solution

The fourth proportional to 115,424.40, 173,152.80 and 36,530.40 is: 54,800.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,424.40 : 173,152.80 = 36,530.40 : x
  2. Step 2: Convert to fraction form
    115,424.40/173,152.80 = 36,530.40/x
  3. Step 3: Cross multiply
    115,424.40x = 173,152.80 × 36,530.40
  4. Step 4: Simplify right side
    115,424.40x = 6,325,341,045.12
  5. Step 5: Solve for x
    x = 6,325,341,045.12/115,424.40
  6. Step 6: Final answer
    x = 54,800.73

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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.