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Finding the Fourth Proportional to 304,983.01, 420,877.52 and 169,019.25

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Solution

The fourth proportional to 304,983.01, 420,877.52 and 169,019.25 is: 233,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,983.01 : 420,877.52 = 169,019.25 : x
  2. Step 2: Convert to fraction form
    304,983.01/420,877.52 = 169,019.25/x
  3. Step 3: Cross multiply
    304,983.01x = 420,877.52 × 169,019.25
  4. Step 4: Simplify right side
    304,983.01x = 71,136,402,772.26
  5. Step 5: Solve for x
    x = 71,136,402,772.26/304,983.01
  6. Step 6: Final answer
    x = 233,247.10

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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.