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Finding the Fourth Proportional to 423,173.74, 634,801.52 and 123,647.48

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Solution

The fourth proportional to 423,173.74, 634,801.52 and 123,647.48 is: 185,483.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,173.74 : 634,801.52 = 123,647.48 : x
  2. Step 2: Convert to fraction form
    423,173.74/634,801.52 = 123,647.48/x
  3. Step 3: Cross multiply
    423,173.74x = 634,801.52 × 123,647.48
  4. Step 4: Simplify right side
    423,173.74x = 78,491,608,248.17
  5. Step 5: Solve for x
    x = 78,491,608,248.17/423,173.74
  6. Step 6: Final answer
    x = 185,483.17

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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.