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Finding the Fourth Proportional to 575,521.05, 863,134.26 and 170,618.57

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Solution

The fourth proportional to 575,521.05, 863,134.26 and 170,618.57 is: 255,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,521.05 : 863,134.26 = 170,618.57 : x
  2. Step 2: Convert to fraction form
    575,521.05/863,134.26 = 170,618.57/x
  3. Step 3: Cross multiply
    575,521.05x = 863,134.26 × 170,618.57
  4. Step 4: Simplify right side
    575,521.05x = 147,266,733,159.21
  5. Step 5: Solve for x
    x = 147,266,733,159.21/575,521.05
  6. Step 6: Final answer
    x = 255,884.18

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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.