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Finding the Fourth Proportional to 70,716, 97,587.97 and 40,511.10

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Solution

The fourth proportional to 70,716, 97,587.97 and 40,511.10 is: 55,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,716 : 97,587.97 = 40,511.10 : x
  2. Step 2: Convert to fraction form
    70,716/97,587.97 = 40,511.10/x
  3. Step 3: Cross multiply
    70,716x = 97,587.97 × 40,511.10
  4. Step 4: Simplify right side
    70,716x = 3,953,396,011.47
  5. Step 5: Solve for x
    x = 3,953,396,011.47/70,716
  6. Step 6: Final answer
    x = 55,905.25

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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.