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Finding the Fourth Proportional to 652,111.80, 978,167.70 and 178,796.40

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Solution

The fourth proportional to 652,111.80, 978,167.70 and 178,796.40 is: 268,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,111.80 : 978,167.70 = 178,796.40 : x
  2. Step 2: Convert to fraction form
    652,111.80/978,167.70 = 178,796.40/x
  3. Step 3: Cross multiply
    652,111.80x = 978,167.70 × 178,796.40
  4. Step 4: Simplify right side
    652,111.80x = 174,892,863,356.28
  5. Step 5: Solve for x
    x = 174,892,863,356.28/652,111.80
  6. Step 6: Final answer
    x = 268,194.60

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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.