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Finding the Fourth Proportional to 115,058.88, 172,590.48 and 31,955.04

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Solution

The fourth proportional to 115,058.88, 172,590.48 and 31,955.04 is: 47,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,058.88 : 172,590.48 = 31,955.04 : x
  2. Step 2: Convert to fraction form
    115,058.88/172,590.48 = 31,955.04/x
  3. Step 3: Cross multiply
    115,058.88x = 172,590.48 × 31,955.04
  4. Step 4: Simplify right side
    115,058.88x = 5,515,135,692.02
  5. Step 5: Solve for x
    x = 5,515,135,692.02/115,058.88
  6. Step 6: Final answer
    x = 47,933.16

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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.