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Finding the Fourth Proportional to 45,632.40, 68,351.40 and 37,856.40

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Solution

The fourth proportional to 45,632.40, 68,351.40 and 37,856.40 is: 56,703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,632.40 : 68,351.40 = 37,856.40 : x
  2. Step 2: Convert to fraction form
    45,632.40/68,351.40 = 37,856.40/x
  3. Step 3: Cross multiply
    45,632.40x = 68,351.40 × 37,856.40
  4. Step 4: Simplify right side
    45,632.40x = 2,587,537,938.96
  5. Step 5: Solve for x
    x = 2,587,537,938.96/45,632.40
  6. Step 6: Final answer
    x = 56,703.96

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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.