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Finding the Fourth Proportional to 64,404.20, 96,606.30 and 46,663.40

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Solution

The fourth proportional to 64,404.20, 96,606.30 and 46,663.40 is: 69,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,404.20 : 96,606.30 = 46,663.40 : x
  2. Step 2: Convert to fraction form
    64,404.20/96,606.30 = 46,663.40/x
  3. Step 3: Cross multiply
    64,404.20x = 96,606.30 × 46,663.40
  4. Step 4: Simplify right side
    64,404.20x = 4,507,978,419.42
  5. Step 5: Solve for x
    x = 4,507,978,419.42/64,404.20
  6. Step 6: Final answer
    x = 69,995.10

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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.