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Finding the Fourth Proportional to 555,090.72, 832,638.24 and 134,365.92

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Solution

The fourth proportional to 555,090.72, 832,638.24 and 134,365.92 is: 201,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,090.72 : 832,638.24 = 134,365.92 : x
  2. Step 2: Convert to fraction form
    555,090.72/832,638.24 = 134,365.92/x
  3. Step 3: Cross multiply
    555,090.72x = 832,638.24 × 134,365.92
  4. Step 4: Simplify right side
    555,090.72x = 111,878,203,144.78
  5. Step 5: Solve for x
    x = 111,878,203,144.78/555,090.72
  6. Step 6: Final answer
    x = 201,549.40

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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.