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Finding the Fourth Proportional to 77,223.72, 115,715.60 and 37,199.60

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Solution

The fourth proportional to 77,223.72, 115,715.60 and 37,199.60 is: 55,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,223.72 : 115,715.60 = 37,199.60 : x
  2. Step 2: Convert to fraction form
    77,223.72/115,715.60 = 37,199.60/x
  3. Step 3: Cross multiply
    77,223.72x = 115,715.60 × 37,199.60
  4. Step 4: Simplify right side
    77,223.72x = 4,304,573,269.18
  5. Step 5: Solve for x
    x = 4,304,573,269.18/77,223.72
  6. Step 6: Final answer
    x = 55,741.59

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1.5x scale

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.