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Finding the Fourth Proportional to 104,806.40, 144,610.36 and 62,356.64

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Solution

The fourth proportional to 104,806.40, 144,610.36 and 62,356.64 is: 86,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,806.40 : 144,610.36 = 62,356.64 : x
  2. Step 2: Convert to fraction form
    104,806.40/144,610.36 = 62,356.64/x
  3. Step 3: Cross multiply
    104,806.40x = 144,610.36 × 62,356.64
  4. Step 4: Simplify right side
    104,806.40x = 9,017,416,158.79
  5. Step 5: Solve for x
    x = 9,017,416,158.79/104,806.40
  6. Step 6: Final answer
    x = 86,038.79

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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.