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Finding the Fourth Proportional to 104,369.88, 144,030.06 and 56,622.36

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Solution

The fourth proportional to 104,369.88, 144,030.06 and 56,622.36 is: 78,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,369.88 : 144,030.06 = 56,622.36 : x
  2. Step 2: Convert to fraction form
    104,369.88/144,030.06 = 56,622.36/x
  3. Step 3: Cross multiply
    104,369.88x = 144,030.06 × 56,622.36
  4. Step 4: Simplify right side
    104,369.88x = 8,155,321,908.14
  5. Step 5: Solve for x
    x = 8,155,321,908.14/104,369.88
  6. Step 6: Final answer
    x = 78,138.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.