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Finding the Fourth Proportional to 70,770.86, 97,666.47 and 40,562.01

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Solution

The fourth proportional to 70,770.86, 97,666.47 and 40,562.01 is: 55,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,770.86 : 97,666.47 = 40,562.01 : x
  2. Step 2: Convert to fraction form
    70,770.86/97,666.47 = 40,562.01/x
  3. Step 3: Cross multiply
    70,770.86x = 97,666.47 × 40,562.01
  4. Step 4: Simplify right side
    70,770.86x = 3,961,548,332.80
  5. Step 5: Solve for x
    x = 3,961,548,332.80/70,770.86
  6. Step 6: Final answer
    x = 55,977.12

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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.