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Finding the Fourth Proportional to 222,714.77, 307,346.45 and 120,740.19

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Solution

The fourth proportional to 222,714.77, 307,346.45 and 120,740.19 is: 166,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,714.77 : 307,346.45 = 120,740.19 : x
  2. Step 2: Convert to fraction form
    222,714.77/307,346.45 = 120,740.19/x
  3. Step 3: Cross multiply
    222,714.77x = 307,346.45 × 120,740.19
  4. Step 4: Simplify right side
    222,714.77x = 37,109,068,165.12
  5. Step 5: Solve for x
    x = 37,109,068,165.12/222,714.77
  6. Step 6: Final answer
    x = 166,621.50

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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.