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Finding the Fourth Proportional to 66,507.01, 91,750.71 and 43,816.89

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Solution

The fourth proportional to 66,507.01, 91,750.71 and 43,816.89 is: 60,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,507.01 : 91,750.71 = 43,816.89 : x
  2. Step 2: Convert to fraction form
    66,507.01/91,750.71 = 43,816.89/x
  3. Step 3: Cross multiply
    66,507.01x = 91,750.71 × 43,816.89
  4. Step 4: Simplify right side
    66,507.01x = 4,020,230,767.49
  5. Step 5: Solve for x
    x = 4,020,230,767.49/66,507.01
  6. Step 6: Final answer
    x = 60,448.23

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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.