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Finding the Fourth Proportional to 338,632.59, 507,976.52 and 170,066.22

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Solution

The fourth proportional to 338,632.59, 507,976.52 and 170,066.22 is: 255,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,632.59 : 507,976.52 = 170,066.22 : x
  2. Step 2: Convert to fraction form
    338,632.59/507,976.52 = 170,066.22/x
  3. Step 3: Cross multiply
    338,632.59x = 507,976.52 × 170,066.22
  4. Step 4: Simplify right side
    338,632.59x = 86,389,646,605.15
  5. Step 5: Solve for x
    x = 86,389,646,605.15/338,632.59
  6. Step 6: Final answer
    x = 255,113.21

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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.