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Finding the Fourth Proportional to 371,208.22, 512,264.35 and 201,442.34

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Solution

The fourth proportional to 371,208.22, 512,264.35 and 201,442.34 is: 277,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,208.22 : 512,264.35 = 201,442.34 : x
  2. Step 2: Convert to fraction form
    371,208.22/512,264.35 = 201,442.34/x
  3. Step 3: Cross multiply
    371,208.22x = 512,264.35 × 201,442.34
  4. Step 4: Simplify right side
    371,208.22x = 103,191,730,895.04
  5. Step 5: Solve for x
    x = 103,191,730,895.04/371,208.22
  6. Step 6: Final answer
    x = 277,988.81

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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.