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Finding the Fourth Proportional to 125,834.72, 188,952.72 and 73,282.40

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Solution

The fourth proportional to 125,834.72, 188,952.72 and 73,282.40 is: 110,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,834.72 : 188,952.72 = 73,282.40 : x
  2. Step 2: Convert to fraction form
    125,834.72/188,952.72 = 73,282.40/x
  3. Step 3: Cross multiply
    125,834.72x = 188,952.72 × 73,282.40
  4. Step 4: Simplify right side
    125,834.72x = 13,846,908,808.13
  5. Step 5: Solve for x
    x = 13,846,908,808.13/125,834.72
  6. Step 6: Final answer
    x = 110,040.45

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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.