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Finding the Fourth Proportional to 64,354.19, 88,808.64 and 39,203.69

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Solution

The fourth proportional to 64,354.19, 88,808.64 and 39,203.69 is: 54,101.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.19 : 88,808.64 = 39,203.69 : x
  2. Step 2: Convert to fraction form
    64,354.19/88,808.64 = 39,203.69/x
  3. Step 3: Cross multiply
    64,354.19x = 88,808.64 × 39,203.69
  4. Step 4: Simplify right side
    64,354.19x = 3,481,625,947.84
  5. Step 5: Solve for x
    x = 3,481,625,947.84/64,354.19
  6. Step 6: Final answer
    x = 54,101.00

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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.