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Finding the Fourth Proportional to 118,065.65, 177,054.72 and 47,921.27

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Solution

The fourth proportional to 118,065.65, 177,054.72 and 47,921.27 is: 71,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,065.65 : 177,054.72 = 47,921.27 : x
  2. Step 2: Convert to fraction form
    118,065.65/177,054.72 = 47,921.27/x
  3. Step 3: Cross multiply
    118,065.65x = 177,054.72 × 47,921.27
  4. Step 4: Simplify right side
    118,065.65x = 8,484,687,041.89
  5. Step 5: Solve for x
    x = 8,484,687,041.89/118,065.65
  6. Step 6: Final answer
    x = 71,864.15

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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.