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Finding the Fourth Proportional to 252,189.72, 348,017.54 and 137,469.64

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Solution

The fourth proportional to 252,189.72, 348,017.54 and 137,469.64 is: 189,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,189.72 : 348,017.54 = 137,469.64 : x
  2. Step 2: Convert to fraction form
    252,189.72/348,017.54 = 137,469.64/x
  3. Step 3: Cross multiply
    252,189.72x = 348,017.54 × 137,469.64
  4. Step 4: Simplify right side
    252,189.72x = 47,841,845,937.49
  5. Step 5: Solve for x
    x = 47,841,845,937.49/252,189.72
  6. Step 6: Final answer
    x = 189,705.77

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1.5x scale

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.