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Finding the Fourth Proportional to 70,808.43, 97,715.91 and 40,594.41

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Solution

The fourth proportional to 70,808.43, 97,715.91 and 40,594.41 is: 56,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,808.43 : 97,715.91 = 40,594.41 : x
  2. Step 2: Convert to fraction form
    70,808.43/97,715.91 = 40,594.41/x
  3. Step 3: Cross multiply
    70,808.43x = 97,715.91 × 40,594.41
  4. Step 4: Simplify right side
    70,808.43x = 3,966,719,714.06
  5. Step 5: Solve for x
    x = 3,966,719,714.06/70,808.43
  6. Step 6: Final answer
    x = 56,020.44

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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.