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Finding the Fourth Proportional to 65,851.10, 99,007.05 and 64,468.70

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Solution

The fourth proportional to 65,851.10, 99,007.05 and 64,468.70 is: 96,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,851.10 : 99,007.05 = 64,468.70 : x
  2. Step 2: Convert to fraction form
    65,851.10/99,007.05 = 64,468.70/x
  3. Step 3: Cross multiply
    65,851.10x = 99,007.05 × 64,468.70
  4. Step 4: Simplify right side
    65,851.10x = 6,382,855,804.34
  5. Step 5: Solve for x
    x = 6,382,855,804.34/65,851.10
  6. Step 6: Final answer
    x = 96,928.61

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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.