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Finding the Fourth Proportional to 146,368.52, 201,989.40 and 79,300.52

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Solution

The fourth proportional to 146,368.52, 201,989.40 and 79,300.52 is: 109,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,368.52 : 201,989.40 = 79,300.52 : x
  2. Step 2: Convert to fraction form
    146,368.52/201,989.40 = 79,300.52/x
  3. Step 3: Cross multiply
    146,368.52x = 201,989.40 × 79,300.52
  4. Step 4: Simplify right side
    146,368.52x = 16,017,864,454.49
  5. Step 5: Solve for x
    x = 16,017,864,454.49/146,368.52
  6. Step 6: Final answer
    x = 109,435.17

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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.