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Finding the Fourth Proportional to 228,967.19, 315,609.75 and 180,490.11

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Solution

The fourth proportional to 228,967.19, 315,609.75 and 180,490.11 is: 248,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,967.19 : 315,609.75 = 180,490.11 : x
  2. Step 2: Convert to fraction form
    228,967.19/315,609.75 = 180,490.11/x
  3. Step 3: Cross multiply
    228,967.19x = 315,609.75 × 180,490.11
  4. Step 4: Simplify right side
    228,967.19x = 56,964,439,593.97
  5. Step 5: Solve for x
    x = 56,964,439,593.97/228,967.19
  6. Step 6: Final answer
    x = 248,788.66

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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.