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Finding the Fourth Proportional to 186,058.40, 279,087.60 and 169,728.80

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Solution

The fourth proportional to 186,058.40, 279,087.60 and 169,728.80 is: 254,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,058.40 : 279,087.60 = 169,728.80 : x
  2. Step 2: Convert to fraction form
    186,058.40/279,087.60 = 169,728.80/x
  3. Step 3: Cross multiply
    186,058.40x = 279,087.60 × 169,728.80
  4. Step 4: Simplify right side
    186,058.40x = 47,369,203,442.88
  5. Step 5: Solve for x
    x = 47,369,203,442.88/186,058.40
  6. Step 6: Final answer
    x = 254,593.20

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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.