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Finding the Fourth Proportional to 114,630.80, 171,946.20 and 74,773.40

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Solution

The fourth proportional to 114,630.80, 171,946.20 and 74,773.40 is: 112,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,630.80 : 171,946.20 = 74,773.40 : x
  2. Step 2: Convert to fraction form
    114,630.80/171,946.20 = 74,773.40/x
  3. Step 3: Cross multiply
    114,630.80x = 171,946.20 × 74,773.40
  4. Step 4: Simplify right side
    114,630.80x = 12,857,001,991.08
  5. Step 5: Solve for x
    x = 12,857,001,991.08/114,630.80
  6. Step 6: Final answer
    x = 112,160.10

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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.