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Finding the Fourth Proportional to 66,567.84, 91,841.49 and 43,918.08

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Solution

The fourth proportional to 66,567.84, 91,841.49 and 43,918.08 is: 60,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,567.84 : 91,841.49 = 43,918.08 : x
  2. Step 2: Convert to fraction form
    66,567.84/91,841.49 = 43,918.08/x
  3. Step 3: Cross multiply
    66,567.84x = 91,841.49 × 43,918.08
  4. Step 4: Simplify right side
    66,567.84x = 4,033,501,905.14
  5. Step 5: Solve for x
    x = 4,033,501,905.14/66,567.84
  6. Step 6: Final answer
    x = 60,592.35

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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.