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Finding the Fourth Proportional to 99,130.72, 148,580.88 and 36,761.44

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Solution

The fourth proportional to 99,130.72, 148,580.88 and 36,761.44 is: 55,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.72 : 148,580.88 = 36,761.44 : x
  2. Step 2: Convert to fraction form
    99,130.72/148,580.88 = 36,761.44/x
  3. Step 3: Cross multiply
    99,130.72x = 148,580.88 × 36,761.44
  4. Step 4: Simplify right side
    99,130.72x = 5,462,047,105.27
  5. Step 5: Solve for x
    x = 5,462,047,105.27/99,130.72
  6. Step 6: Final answer
    x = 55,099.44

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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.