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Finding the Fourth Proportional to 223,803.13, 308,848.31 and 123,201.13

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Solution

The fourth proportional to 223,803.13, 308,848.31 and 123,201.13 is: 170,017.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,803.13 : 308,848.31 = 123,201.13 : x
  2. Step 2: Convert to fraction form
    223,803.13/308,848.31 = 123,201.13/x
  3. Step 3: Cross multiply
    223,803.13x = 308,848.31 × 123,201.13
  4. Step 4: Simplify right side
    223,803.13x = 38,050,459,554.35
  5. Step 5: Solve for x
    x = 38,050,459,554.35/223,803.13
  6. Step 6: Final answer
    x = 170,017.55

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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.