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Finding the Fourth Proportional to 236,401.60, 354,605.44 and 78,630.08

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Solution

The fourth proportional to 236,401.60, 354,605.44 and 78,630.08 is: 117,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,401.60 : 354,605.44 = 78,630.08 : x
  2. Step 2: Convert to fraction form
    236,401.60/354,605.44 = 78,630.08/x
  3. Step 3: Cross multiply
    236,401.60x = 354,605.44 × 78,630.08
  4. Step 4: Simplify right side
    236,401.60x = 27,882,654,115.64
  5. Step 5: Solve for x
    x = 27,882,654,115.64/236,401.60
  6. Step 6: Final answer
    x = 117,946.13

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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.