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Finding the Fourth Proportional to 222,493.60, 333,776.80 and 72,690.40

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Solution

The fourth proportional to 222,493.60, 333,776.80 and 72,690.40 is: 109,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,493.60 : 333,776.80 = 72,690.40 : x
  2. Step 2: Convert to fraction form
    222,493.60/333,776.80 = 72,690.40/x
  3. Step 3: Cross multiply
    222,493.60x = 333,776.80 × 72,690.40
  4. Step 4: Simplify right side
    222,493.60x = 24,262,369,102.72
  5. Step 5: Solve for x
    x = 24,262,369,102.72/222,493.60
  6. Step 6: Final answer
    x = 109,047.49

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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.