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Finding the Fourth Proportional to 101,055.76, 151,386.24 and 74,353.12

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Solution

The fourth proportional to 101,055.76, 151,386.24 and 74,353.12 is: 111,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,055.76 : 151,386.24 = 74,353.12 : x
  2. Step 2: Convert to fraction form
    101,055.76/151,386.24 = 74,353.12/x
  3. Step 3: Cross multiply
    101,055.76x = 151,386.24 × 74,353.12
  4. Step 4: Simplify right side
    101,055.76x = 11,256,039,269.07
  5. Step 5: Solve for x
    x = 11,256,039,269.07/101,055.76
  6. Step 6: Final answer
    x = 111,384.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.