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Finding the Fourth Proportional to 223,415.80, 335,220.90 and 112,607.80

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Solution

The fourth proportional to 223,415.80, 335,220.90 and 112,607.80 is: 168,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,415.80 : 335,220.90 = 112,607.80 : x
  2. Step 2: Convert to fraction form
    223,415.80/335,220.90 = 112,607.80/x
  3. Step 3: Cross multiply
    223,415.80x = 335,220.90 × 112,607.80
  4. Step 4: Simplify right side
    223,415.80x = 37,748,488,063.02
  5. Step 5: Solve for x
    x = 37,748,488,063.02/223,415.80
  6. Step 6: Final answer
    x = 168,960.69

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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.