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Finding the Fourth Proportional to 368,705.82, 553,273.38 and 155,460.36

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Solution

The fourth proportional to 368,705.82, 553,273.38 and 155,460.36 is: 233,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,705.82 : 553,273.38 = 155,460.36 : x
  2. Step 2: Convert to fraction form
    368,705.82/553,273.38 = 155,460.36/x
  3. Step 3: Cross multiply
    368,705.82x = 553,273.38 × 155,460.36
  4. Step 4: Simplify right side
    368,705.82x = 86,012,078,833.22
  5. Step 5: Solve for x
    x = 86,012,078,833.22/368,705.82
  6. Step 6: Final answer
    x = 233,281.04

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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.