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Finding the Fourth Proportional to 61,212.30, 91,818.45 and 50,844.30

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Solution

The fourth proportional to 61,212.30, 91,818.45 and 50,844.30 is: 76,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.30 : 91,818.45 = 50,844.30 : x
  2. Step 2: Convert to fraction form
    61,212.30/91,818.45 = 50,844.30/x
  3. Step 3: Cross multiply
    61,212.30x = 91,818.45 × 50,844.30
  4. Step 4: Simplify right side
    61,212.30x = 4,668,444,817.34
  5. Step 5: Solve for x
    x = 4,668,444,817.34/61,212.30
  6. Step 6: Final answer
    x = 76,266.45

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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.