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Finding the Fourth Proportional to 70,401.78, 97,247.62 and 52,465.64

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Solution

The fourth proportional to 70,401.78, 97,247.62 and 52,465.64 is: 72,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.78 : 97,247.62 = 52,465.64 : x
  2. Step 2: Convert to fraction form
    70,401.78/97,247.62 = 52,465.64/x
  3. Step 3: Cross multiply
    70,401.78x = 97,247.62 × 52,465.64
  4. Step 4: Simplify right side
    70,401.78x = 5,102,158,621.78
  5. Step 5: Solve for x
    x = 5,102,158,621.78/70,401.78
  6. Step 6: Final answer
    x = 72,472.01

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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.