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Finding the Fourth Proportional to 74,680.44, 103,051.20 and 42,404.80

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Solution

The fourth proportional to 74,680.44, 103,051.20 and 42,404.80 is: 58,514.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680.44 : 103,051.20 = 42,404.80 : x
  2. Step 2: Convert to fraction form
    74,680.44/103,051.20 = 42,404.80/x
  3. Step 3: Cross multiply
    74,680.44x = 103,051.20 × 42,404.80
  4. Step 4: Simplify right side
    74,680.44x = 4,369,865,525.76
  5. Step 5: Solve for x
    x = 4,369,865,525.76/74,680.44
  6. Step 6: Final answer
    x = 58,514.19

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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.