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Finding the Fourth Proportional to 119,784.99, 179,638.61 and 39,801.48

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Solution

The fourth proportional to 119,784.99, 179,638.61 and 39,801.48 is: 59,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,784.99 : 179,638.61 = 39,801.48 : x
  2. Step 2: Convert to fraction form
    119,784.99/179,638.61 = 39,801.48/x
  3. Step 3: Cross multiply
    119,784.99x = 179,638.61 × 39,801.48
  4. Step 4: Simplify right side
    119,784.99x = 7,149,881,894.37
  5. Step 5: Solve for x
    x = 7,149,881,894.37/119,784.99
  6. Step 6: Final answer
    x = 59,689.30

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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.