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Finding the Fourth Proportional to 223,678.19, 308,675.90 and 123,076.19

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Solution

The fourth proportional to 223,678.19, 308,675.90 and 123,076.19 is: 169,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,678.19 : 308,675.90 = 123,076.19 : x
  2. Step 2: Convert to fraction form
    223,678.19/308,675.90 = 123,076.19/x
  3. Step 3: Cross multiply
    223,678.19x = 308,675.90 × 123,076.19
  4. Step 4: Simplify right side
    223,678.19x = 37,990,652,945.13
  5. Step 5: Solve for x
    x = 37,990,652,945.13/223,678.19
  6. Step 6: Final answer
    x = 169,845.14

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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.