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Finding the Fourth Proportional to 74,415.65, 111,703.46 and 30,071.52

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Solution

The fourth proportional to 74,415.65, 111,703.46 and 30,071.52 is: 45,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,415.65 : 111,703.46 = 30,071.52 : x
  2. Step 2: Convert to fraction form
    74,415.65/111,703.46 = 30,071.52/x
  3. Step 3: Cross multiply
    74,415.65x = 111,703.46 × 30,071.52
  4. Step 4: Simplify right side
    74,415.65x = 3,359,092,681.10
  5. Step 5: Solve for x
    x = 3,359,092,681.10/74,415.65
  6. Step 6: Final answer
    x = 45,139.60

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