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Finding the Fourth Proportional to 144,548.40, 216,826.68 and 39,369.36

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Solution

The fourth proportional to 144,548.40, 216,826.68 and 39,369.36 is: 59,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,548.40 : 216,826.68 = 39,369.36 : x
  2. Step 2: Convert to fraction form
    144,548.40/216,826.68 = 39,369.36/x
  3. Step 3: Cross multiply
    144,548.40x = 216,826.68 × 39,369.36
  4. Step 4: Simplify right side
    144,548.40x = 8,536,327,622.52
  5. Step 5: Solve for x
    x = 8,536,327,622.52/144,548.40
  6. Step 6: Final answer
    x = 59,055.15

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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.