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Finding the Fourth Proportional to 146,283.68, 201,870.31 and 79,215.68

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Solution

The fourth proportional to 146,283.68, 201,870.31 and 79,215.68 is: 109,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,283.68 : 201,870.31 = 79,215.68 : x
  2. Step 2: Convert to fraction form
    146,283.68/201,870.31 = 79,215.68/x
  3. Step 3: Cross multiply
    146,283.68x = 201,870.31 × 79,215.68
  4. Step 4: Simplify right side
    146,283.68x = 15,991,293,878.46
  5. Step 5: Solve for x
    x = 15,991,293,878.46/146,283.68
  6. Step 6: Final answer
    x = 109,317.01

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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.