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Finding the Fourth Proportional to 210,361.31, 292,258.31 and 207,839.03

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Solution

The fourth proportional to 210,361.31, 292,258.31 and 207,839.03 is: 288,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,361.31 : 292,258.31 = 207,839.03 : x
  2. Step 2: Convert to fraction form
    210,361.31/292,258.31 = 207,839.03/x
  3. Step 3: Cross multiply
    210,361.31x = 292,258.31 × 207,839.03
  4. Step 4: Simplify right side
    210,361.31x = 60,742,681,159.35
  5. Step 5: Solve for x
    x = 60,742,681,159.35/210,361.31
  6. Step 6: Final answer
    x = 288,754.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.