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Finding the Fourth Proportional to 312,173.41, 468,070.50 and 122,406.42

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Solution

The fourth proportional to 312,173.41, 468,070.50 and 122,406.42 is: 183,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,173.41 : 468,070.50 = 122,406.42 : x
  2. Step 2: Convert to fraction form
    312,173.41/468,070.50 = 122,406.42/x
  3. Step 3: Cross multiply
    312,173.41x = 468,070.50 × 122,406.42
  4. Step 4: Simplify right side
    312,173.41x = 57,294,834,212.61
  5. Step 5: Solve for x
    x = 57,294,834,212.61/312,173.41
  6. Step 6: Final answer
    x = 183,535.28

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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.