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Finding the Fourth Proportional to 64,872.74, 97,330.96 and 64,435.34

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Solution

The fourth proportional to 64,872.74, 97,330.96 and 64,435.34 is: 96,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,872.74 : 97,330.96 = 64,435.34 : x
  2. Step 2: Convert to fraction form
    64,872.74/97,330.96 = 64,435.34/x
  3. Step 3: Cross multiply
    64,872.74x = 97,330.96 × 64,435.34
  4. Step 4: Simplify right side
    64,872.74x = 6,271,553,500.13
  5. Step 5: Solve for x
    x = 6,271,553,500.13/64,872.74
  6. Step 6: Final answer
    x = 96,674.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.