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Finding the Fourth Proportional to 223,494.19, 308,421.98 and 122,892.19

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Solution

The fourth proportional to 223,494.19, 308,421.98 and 122,892.19 is: 169,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,494.19 : 308,421.98 = 122,892.19 : x
  2. Step 2: Convert to fraction form
    223,494.19/308,421.98 = 122,892.19/x
  3. Step 3: Cross multiply
    223,494.19x = 308,421.98 × 122,892.19
  4. Step 4: Simplify right side
    223,494.19x = 37,902,651,641.67
  5. Step 5: Solve for x
    x = 37,902,651,641.67/223,494.19
  6. Step 6: Final answer
    x = 169,591.22

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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.