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Finding the Fourth Proportional to 73,619.16, 101,594.42 and 40,085.16

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Solution

The fourth proportional to 73,619.16, 101,594.42 and 40,085.16 is: 55,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,619.16 : 101,594.42 = 40,085.16 : x
  2. Step 2: Convert to fraction form
    73,619.16/101,594.42 = 40,085.16/x
  3. Step 3: Cross multiply
    73,619.16x = 101,594.42 × 40,085.16
  4. Step 4: Simplify right side
    73,619.16x = 4,072,428,580.81
  5. Step 5: Solve for x
    x = 4,072,428,580.81/73,619.16
  6. Step 6: Final answer
    x = 55,317.51

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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.