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Finding the Fourth Proportional to 73,648.28, 110,461.02 and 40,384.76

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Solution

The fourth proportional to 73,648.28, 110,461.02 and 40,384.76 is: 60,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,648.28 : 110,461.02 = 40,384.76 : x
  2. Step 2: Convert to fraction form
    73,648.28/110,461.02 = 40,384.76/x
  3. Step 3: Cross multiply
    73,648.28x = 110,461.02 × 40,384.76
  4. Step 4: Simplify right side
    73,648.28x = 4,460,941,782.06
  5. Step 5: Solve for x
    x = 4,460,941,782.06/73,648.28
  6. Step 6: Final answer
    x = 60,570.89

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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.