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Finding the Fourth Proportional to 223,225.48, 308,053.44 and 121,251.88

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Solution

The fourth proportional to 223,225.48, 308,053.44 and 121,251.88 is: 167,328.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,225.48 : 308,053.44 = 121,251.88 : x
  2. Step 2: Convert to fraction form
    223,225.48/308,053.44 = 121,251.88/x
  3. Step 3: Cross multiply
    223,225.48x = 308,053.44 × 121,251.88
  4. Step 4: Simplify right side
    223,225.48x = 37,352,058,740.47
  5. Step 5: Solve for x
    x = 37,352,058,740.47/223,225.48
  6. Step 6: Final answer
    x = 167,328.83

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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.