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Finding the Fourth Proportional to 220,506.80, 304,274.04 and 124,994.48

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Solution

The fourth proportional to 220,506.80, 304,274.04 and 124,994.48 is: 172,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,506.80 : 304,274.04 = 124,994.48 : x
  2. Step 2: Convert to fraction form
    220,506.80/304,274.04 = 124,994.48/x
  3. Step 3: Cross multiply
    220,506.80x = 304,274.04 × 124,994.48
  4. Step 4: Simplify right side
    220,506.80x = 38,032,575,407.30
  5. Step 5: Solve for x
    x = 38,032,575,407.30/220,506.80
  6. Step 6: Final answer
    x = 172,478.02

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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.