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Finding the Fourth Proportional to 371,005.92, 556,549.74 and 118,227.60

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Solution

The fourth proportional to 371,005.92, 556,549.74 and 118,227.60 is: 177,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,005.92 : 556,549.74 = 118,227.60 : x
  2. Step 2: Convert to fraction form
    371,005.92/556,549.74 = 118,227.60/x
  3. Step 3: Cross multiply
    371,005.92x = 556,549.74 × 118,227.60
  4. Step 4: Simplify right side
    371,005.92x = 65,799,540,040.82
  5. Step 5: Solve for x
    x = 65,799,540,040.82/371,005.92
  6. Step 6: Final answer
    x = 177,354.42

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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.