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Finding the Fourth Proportional to 220,242.80, 304,081.64 and 169,164.40

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Solution

The fourth proportional to 220,242.80, 304,081.64 and 169,164.40 is: 233,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,242.80 : 304,081.64 = 169,164.40 : x
  2. Step 2: Convert to fraction form
    220,242.80/304,081.64 = 169,164.40/x
  3. Step 3: Cross multiply
    220,242.80x = 304,081.64 × 169,164.40
  4. Step 4: Simplify right side
    220,242.80x = 51,439,788,731.66
  5. Step 5: Solve for x
    x = 51,439,788,731.66/220,242.80
  6. Step 6: Final answer
    x = 233,559.46

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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.