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Finding the Fourth Proportional to 72,848.72, 100,530.12 and 41,017.52

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Solution

The fourth proportional to 72,848.72, 100,530.12 and 41,017.52 is: 56,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,848.72 : 100,530.12 = 41,017.52 : x
  2. Step 2: Convert to fraction form
    72,848.72/100,530.12 = 41,017.52/x
  3. Step 3: Cross multiply
    72,848.72x = 100,530.12 × 41,017.52
  4. Step 4: Simplify right side
    72,848.72x = 4,123,496,207.70
  5. Step 5: Solve for x
    x = 4,123,496,207.70/72,848.72
  6. Step 6: Final answer
    x = 56,603.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.