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Finding the Fourth Proportional to 86,381.86, 119,211.04 and 50,583.40

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Solution

The fourth proportional to 86,381.86, 119,211.04 and 50,583.40 is: 69,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,381.86 : 119,211.04 = 50,583.40 : x
  2. Step 2: Convert to fraction form
    86,381.86/119,211.04 = 50,583.40/x
  3. Step 3: Cross multiply
    86,381.86x = 119,211.04 × 50,583.40
  4. Step 4: Simplify right side
    86,381.86x = 6,030,099,720.74
  5. Step 5: Solve for x
    x = 6,030,099,720.74/86,381.86
  6. Step 6: Final answer
    x = 69,807.48

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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.