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Finding the Fourth Proportional to 620,223.66, 930,167.47 and 170,837.64

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Solution

The fourth proportional to 620,223.66, 930,167.47 and 170,837.64 is: 256,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,223.66 : 930,167.47 = 170,837.64 : x
  2. Step 2: Convert to fraction form
    620,223.66/930,167.47 = 170,837.64/x
  3. Step 3: Cross multiply
    620,223.66x = 930,167.47 × 170,837.64
  4. Step 4: Simplify right side
    620,223.66x = 158,907,619,401.57
  5. Step 5: Solve for x
    x = 158,907,619,401.57/620,223.66
  6. Step 6: Final answer
    x = 256,210.19

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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.