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Finding the Fourth Proportional to 70,964.63, 97,926.71 and 40,728.67

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Solution

The fourth proportional to 70,964.63, 97,926.71 and 40,728.67 is: 56,202.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,964.63 : 97,926.71 = 40,728.67 : x
  2. Step 2: Convert to fraction form
    70,964.63/97,926.71 = 40,728.67/x
  3. Step 3: Cross multiply
    70,964.63x = 97,926.71 × 40,728.67
  4. Step 4: Simplify right side
    70,964.63x = 3,988,424,655.78
  5. Step 5: Solve for x
    x = 3,988,424,655.78/70,964.63
  6. Step 6: Final answer
    x = 56,202.99

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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.