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Finding the Fourth Proportional to 368,866.67, 553,001.65 and 155,496.80

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Solution

The fourth proportional to 368,866.67, 553,001.65 and 155,496.80 is: 233,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,866.67 : 553,001.65 = 155,496.80 : x
  2. Step 2: Convert to fraction form
    368,866.67/553,001.65 = 155,496.80/x
  3. Step 3: Cross multiply
    368,866.67x = 553,001.65 × 155,496.80
  4. Step 4: Simplify right side
    368,866.67x = 85,989,987,963.48
  5. Step 5: Solve for x
    x = 85,989,987,963.48/368,866.67
  6. Step 6: Final answer
    x = 233,119.43

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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.