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Finding the Fourth Proportional to 147,030.51, 220,154.09 and 100,374.51

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Solution

The fourth proportional to 147,030.51, 220,154.09 and 100,374.51 is: 150,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,030.51 : 220,154.09 = 100,374.51 : x
  2. Step 2: Convert to fraction form
    147,030.51/220,154.09 = 100,374.51/x
  3. Step 3: Cross multiply
    147,030.51x = 220,154.09 × 100,374.51
  4. Step 4: Simplify right side
    147,030.51x = 22,097,858,406.37
  5. Step 5: Solve for x
    x = 22,097,858,406.37/147,030.51
  6. Step 6: Final answer
    x = 150,294.37

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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.