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Finding the Fourth Proportional to 335,304.36, 502,281.81 and 155,136.06

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Solution

The fourth proportional to 335,304.36, 502,281.81 and 155,136.06 is: 232,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,304.36 : 502,281.81 = 155,136.06 : x
  2. Step 2: Convert to fraction form
    335,304.36/502,281.81 = 155,136.06/x
  3. Step 3: Cross multiply
    335,304.36x = 502,281.81 × 155,136.06
  4. Step 4: Simplify right side
    335,304.36x = 77,922,021,013.07
  5. Step 5: Solve for x
    x = 77,922,021,013.07/335,304.36
  6. Step 6: Final answer
    x = 232,391.91

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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.