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Finding the Fourth Proportional to 73,846.70, 101,910.79 and 42,017.65

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Solution

The fourth proportional to 73,846.70, 101,910.79 and 42,017.65 is: 57,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,846.70 : 101,910.79 = 42,017.65 : x
  2. Step 2: Convert to fraction form
    73,846.70/101,910.79 = 42,017.65/x
  3. Step 3: Cross multiply
    73,846.70x = 101,910.79 × 42,017.65
  4. Step 4: Simplify right side
    73,846.70x = 4,282,051,703.19
  5. Step 5: Solve for x
    x = 4,282,051,703.19/73,846.70
  6. Step 6: Final answer
    x = 57,985.69

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1.5x scale

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.