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Finding the Fourth Proportional to 108,554.80, 162,832.20 and 91,058.80

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Solution

The fourth proportional to 108,554.80, 162,832.20 and 91,058.80 is: 136,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,554.80 : 162,832.20 = 91,058.80 : x
  2. Step 2: Convert to fraction form
    108,554.80/162,832.20 = 91,058.80/x
  3. Step 3: Cross multiply
    108,554.80x = 162,832.20 × 91,058.80
  4. Step 4: Simplify right side
    108,554.80x = 14,827,304,733.36
  5. Step 5: Solve for x
    x = 14,827,304,733.36/108,554.80
  6. Step 6: Final answer
    x = 136,588.20

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1.5x scale

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.