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Finding the Fourth Proportional to 207,213.12, 310,820.29 and 170,030.48

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Solution

The fourth proportional to 207,213.12, 310,820.29 and 170,030.48 is: 255,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,213.12 : 310,820.29 = 170,030.48 : x
  2. Step 2: Convert to fraction form
    207,213.12/310,820.29 = 170,030.48/x
  3. Step 3: Cross multiply
    207,213.12x = 310,820.29 × 170,030.48
  4. Step 4: Simplify right side
    207,213.12x = 52,848,921,123.26
  5. Step 5: Solve for x
    x = 52,848,921,123.26/207,213.12
  6. Step 6: Final answer
    x = 255,046.21

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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.