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Finding the Fourth Proportional to 70,570.79, 97,384.12 and 41,891.68

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Solution

The fourth proportional to 70,570.79, 97,384.12 and 41,891.68 is: 57,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,570.79 : 97,384.12 = 41,891.68 : x
  2. Step 2: Convert to fraction form
    70,570.79/97,384.12 = 41,891.68/x
  3. Step 3: Cross multiply
    70,570.79x = 97,384.12 × 41,891.68
  4. Step 4: Simplify right side
    70,570.79x = 4,079,584,644.76
  5. Step 5: Solve for x
    x = 4,079,584,644.76/70,570.79
  6. Step 6: Final answer
    x = 57,808.40

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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.