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Finding the Fourth Proportional to 66,252.62, 91,458.47 and 43,603.50

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Solution

The fourth proportional to 66,252.62, 91,458.47 and 43,603.50 is: 60,192.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252.62 : 91,458.47 = 43,603.50 : x
  2. Step 2: Convert to fraction form
    66,252.62/91,458.47 = 43,603.50/x
  3. Step 3: Cross multiply
    66,252.62x = 91,458.47 × 43,603.50
  4. Step 4: Simplify right side
    66,252.62x = 3,987,909,178.63
  5. Step 5: Solve for x
    x = 3,987,909,178.63/66,252.62
  6. Step 6: Final answer
    x = 60,192.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.