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Finding the Fourth Proportional to 66,547.53, 91,836.06 and 36,333.45

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Solution

The fourth proportional to 66,547.53, 91,836.06 and 36,333.45 is: 50,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.53 : 91,836.06 = 36,333.45 : x
  2. Step 2: Convert to fraction form
    66,547.53/91,836.06 = 36,333.45/x
  3. Step 3: Cross multiply
    66,547.53x = 91,836.06 × 36,333.45
  4. Step 4: Simplify right side
    66,547.53x = 3,336,720,894.21
  5. Step 5: Solve for x
    x = 3,336,720,894.21/66,547.53
  6. Step 6: Final answer
    x = 50,140.42

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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.