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Finding the Fourth Proportional to 70,297.70, 96,941.72 and 64,463.04

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Solution

The fourth proportional to 70,297.70, 96,941.72 and 64,463.04 is: 88,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,297.70 : 96,941.72 = 64,463.04 : x
  2. Step 2: Convert to fraction form
    70,297.70/96,941.72 = 64,463.04/x
  3. Step 3: Cross multiply
    70,297.70x = 96,941.72 × 64,463.04
  4. Step 4: Simplify right side
    70,297.70x = 6,249,157,974.03
  5. Step 5: Solve for x
    x = 6,249,157,974.03/70,297.70
  6. Step 6: Final answer
    x = 88,895.62

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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.