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Finding the Fourth Proportional to 290,703.48, 401,280.40 and 169,884.02

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Solution

The fourth proportional to 290,703.48, 401,280.40 and 169,884.02 is: 234,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,703.48 : 401,280.40 = 169,884.02 : x
  2. Step 2: Convert to fraction form
    290,703.48/401,280.40 = 169,884.02/x
  3. Step 3: Cross multiply
    290,703.48x = 401,280.40 × 169,884.02
  4. Step 4: Simplify right side
    290,703.48x = 68,171,127,499.21
  5. Step 5: Solve for x
    x = 68,171,127,499.21/290,703.48
  6. Step 6: Final answer
    x = 234,504.00

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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.