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Finding the Fourth Proportional to 212,925.60, 319,388.40 and 175,600.80

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Solution

The fourth proportional to 212,925.60, 319,388.40 and 175,600.80 is: 263,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,925.60 : 319,388.40 = 175,600.80 : x
  2. Step 2: Convert to fraction form
    212,925.60/319,388.40 = 175,600.80/x
  3. Step 3: Cross multiply
    212,925.60x = 319,388.40 × 175,600.80
  4. Step 4: Simplify right side
    212,925.60x = 56,084,858,550.72
  5. Step 5: Solve for x
    x = 56,084,858,550.72/212,925.60
  6. Step 6: Final answer
    x = 263,401.20

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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.