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Finding the Fourth Proportional to 124,390.80, 186,530.04 and 35,623.98

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Solution

The fourth proportional to 124,390.80, 186,530.04 and 35,623.98 is: 53,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,390.80 : 186,530.04 = 35,623.98 : x
  2. Step 2: Convert to fraction form
    124,390.80/186,530.04 = 35,623.98/x
  3. Step 3: Cross multiply
    124,390.80x = 186,530.04 × 35,623.98
  4. Step 4: Simplify right side
    124,390.80x = 6,644,942,414.36
  5. Step 5: Solve for x
    x = 6,644,942,414.36/124,390.80
  6. Step 6: Final answer
    x = 53,419.89

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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.