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Finding the Fourth Proportional to 66,463.68, 99,531.44 and 51,548.32

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Solution

The fourth proportional to 66,463.68, 99,531.44 and 51,548.32 is: 77,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.68 : 99,531.44 = 51,548.32 : x
  2. Step 2: Convert to fraction form
    66,463.68/99,531.44 = 51,548.32/x
  3. Step 3: Cross multiply
    66,463.68x = 99,531.44 × 51,548.32
  4. Step 4: Simplify right side
    66,463.68x = 5,130,678,519.18
  5. Step 5: Solve for x
    x = 5,130,678,519.18/66,463.68
  6. Step 6: Final answer
    x = 77,195.22

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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.