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Finding the Fourth Proportional to 119,365, 179,009.28 and 39,385.08

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Solution

The fourth proportional to 119,365, 179,009.28 and 39,385.08 is: 59,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,365 : 179,009.28 = 39,385.08 : x
  2. Step 2: Convert to fraction form
    119,365/179,009.28 = 39,385.08/x
  3. Step 3: Cross multiply
    119,365x = 179,009.28 × 39,385.08
  4. Step 4: Simplify right side
    119,365x = 7,050,294,813.54
  5. Step 5: Solve for x
    x = 7,050,294,813.54/119,365
  6. Step 6: Final answer
    x = 59,065.01

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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.