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Finding the Fourth Proportional to 118,645.65, 177,854.00 and 39,716.01

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Solution

The fourth proportional to 118,645.65, 177,854.00 and 39,716.01 is: 59,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,645.65 : 177,854.00 = 39,716.01 : x
  2. Step 2: Convert to fraction form
    118,645.65/177,854.00 = 39,716.01/x
  3. Step 3: Cross multiply
    118,645.65x = 177,854.00 × 39,716.01
  4. Step 4: Simplify right side
    118,645.65x = 7,063,651,043.96
  5. Step 5: Solve for x
    x = 7,063,651,043.96/118,645.65
  6. Step 6: Final answer
    x = 59,535.69

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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.