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Finding the Fourth Proportional to 207,058.80, 310,588.20 and 157,906.80

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Solution

The fourth proportional to 207,058.80, 310,588.20 and 157,906.80 is: 236,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,058.80 : 310,588.20 = 157,906.80 : x
  2. Step 2: Convert to fraction form
    207,058.80/310,588.20 = 157,906.80/x
  3. Step 3: Cross multiply
    207,058.80x = 310,588.20 × 157,906.80
  4. Step 4: Simplify right side
    207,058.80x = 49,043,988,779.76
  5. Step 5: Solve for x
    x = 49,043,988,779.76/207,058.80
  6. Step 6: Final answer
    x = 236,860.20

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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.