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Finding the Fourth Proportional to 170,195.65, 255,303.08 and 51,870.85

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Solution

The fourth proportional to 170,195.65, 255,303.08 and 51,870.85 is: 77,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,195.65 : 255,303.08 = 51,870.85 : x
  2. Step 2: Convert to fraction form
    170,195.65/255,303.08 = 51,870.85/x
  3. Step 3: Cross multiply
    170,195.65x = 255,303.08 × 51,870.85
  4. Step 4: Simplify right side
    170,195.65x = 13,242,787,507.86
  5. Step 5: Solve for x
    x = 13,242,787,507.86/170,195.65
  6. Step 6: Final answer
    x = 77,809.20

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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.