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Finding the Fourth Proportional to 422,068.95, 633,136.24 and 122,554.45

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Solution

The fourth proportional to 422,068.95, 633,136.24 and 122,554.45 is: 183,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,068.95 : 633,136.24 = 122,554.45 : x
  2. Step 2: Convert to fraction form
    422,068.95/633,136.24 = 122,554.45/x
  3. Step 3: Cross multiply
    422,068.95x = 633,136.24 × 122,554.45
  4. Step 4: Simplify right side
    422,068.95x = 77,593,663,055.50
  5. Step 5: Solve for x
    x = 77,593,663,055.50/422,068.95
  6. Step 6: Final answer
    x = 183,841.20

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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.