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Finding the Fourth Proportional to 371,258.48, 512,336.91 and 201,492.61

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Solution

The fourth proportional to 371,258.48, 512,336.91 and 201,492.61 is: 278,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,258.48 : 512,336.91 = 201,492.61 : x
  2. Step 2: Convert to fraction form
    371,258.48/512,336.91 = 201,492.61/x
  3. Step 3: Cross multiply
    371,258.48x = 512,336.91 × 201,492.61
  4. Step 4: Simplify right side
    371,258.48x = 103,232,101,195.24
  5. Step 5: Solve for x
    x = 103,232,101,195.24/371,258.48
  6. Step 6: Final answer
    x = 278,059.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.