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Finding the Fourth Proportional to 114,319.50, 157,745.12 and 63,319.57

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Solution

The fourth proportional to 114,319.50, 157,745.12 and 63,319.57 is: 87,372.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,319.50 : 157,745.12 = 63,319.57 : x
  2. Step 2: Convert to fraction form
    114,319.50/157,745.12 = 63,319.57/x
  3. Step 3: Cross multiply
    114,319.50x = 157,745.12 × 63,319.57
  4. Step 4: Simplify right side
    114,319.50x = 9,988,353,700.53
  5. Step 5: Solve for x
    x = 9,988,353,700.53/114,319.50
  6. Step 6: Final answer
    x = 87,372.26

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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.