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Finding the Fourth Proportional to 223,457.40, 335,186.10 and 156,972.60

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Solution

The fourth proportional to 223,457.40, 335,186.10 and 156,972.60 is: 235,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,457.40 : 335,186.10 = 156,972.60 : x
  2. Step 2: Convert to fraction form
    223,457.40/335,186.10 = 156,972.60/x
  3. Step 3: Cross multiply
    223,457.40x = 335,186.10 × 156,972.60
  4. Step 4: Simplify right side
    223,457.40x = 52,615,033,600.86
  5. Step 5: Solve for x
    x = 52,615,033,600.86/223,457.40
  6. Step 6: Final answer
    x = 235,458.90

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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.