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Finding the Fourth Proportional to 404,828.60, 607,242.90 and 168,049.40

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Solution

The fourth proportional to 404,828.60, 607,242.90 and 168,049.40 is: 252,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,828.60 : 607,242.90 = 168,049.40 : x
  2. Step 2: Convert to fraction form
    404,828.60/607,242.90 = 168,049.40/x
  3. Step 3: Cross multiply
    404,828.60x = 607,242.90 × 168,049.40
  4. Step 4: Simplify right side
    404,828.60x = 102,046,804,999.26
  5. Step 5: Solve for x
    x = 102,046,804,999.26/404,828.60
  6. Step 6: Final answer
    x = 252,074.10

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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.