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Finding the Fourth Proportional to 64,660.44, 96,855.30 and 52,109.40

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Solution

The fourth proportional to 64,660.44, 96,855.30 and 52,109.40 is: 78,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.44 : 96,855.30 = 52,109.40 : x
  2. Step 2: Convert to fraction form
    64,660.44/96,855.30 = 52,109.40/x
  3. Step 3: Cross multiply
    64,660.44x = 96,855.30 × 52,109.40
  4. Step 4: Simplify right side
    64,660.44x = 5,047,071,569.82
  5. Step 5: Solve for x
    x = 5,047,071,569.82/64,660.44
  6. Step 6: Final answer
    x = 78,055.01

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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.