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Finding the Fourth Proportional to 202,740, 279,781.14 and 110,859.52

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Solution

The fourth proportional to 202,740, 279,781.14 and 110,859.52 is: 152,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,740 : 279,781.14 = 110,859.52 : x
  2. Step 2: Convert to fraction form
    202,740/279,781.14 = 110,859.52/x
  3. Step 3: Cross multiply
    202,740x = 279,781.14 × 110,859.52
  4. Step 4: Simplify right side
    202,740x = 31,016,402,885.45
  5. Step 5: Solve for x
    x = 31,016,402,885.45/202,740
  6. Step 6: Final answer
    x = 152,986.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.