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Finding the Fourth Proportional to 66,533.43, 91,816.14 and 45,349.71

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Solution

The fourth proportional to 66,533.43, 91,816.14 and 45,349.71 is: 62,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,533.43 : 91,816.14 = 45,349.71 : x
  2. Step 2: Convert to fraction form
    66,533.43/91,816.14 = 45,349.71/x
  3. Step 3: Cross multiply
    66,533.43x = 91,816.14 × 45,349.71
  4. Step 4: Simplify right side
    66,533.43x = 4,163,835,322.32
  5. Step 5: Solve for x
    x = 4,163,835,322.32/66,533.43
  6. Step 6: Final answer
    x = 62,582.60

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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.