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Finding the Fourth Proportional to 240,860.70, 361,181.70 and 91,051.20

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Solution

The fourth proportional to 240,860.70, 361,181.70 and 91,051.20 is: 136,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,860.70 : 361,181.70 = 91,051.20 : x
  2. Step 2: Convert to fraction form
    240,860.70/361,181.70 = 91,051.20/x
  3. Step 3: Cross multiply
    240,860.70x = 361,181.70 × 91,051.20
  4. Step 4: Simplify right side
    240,860.70x = 32,886,027,203.04
  5. Step 5: Solve for x
    x = 32,886,027,203.04/240,860.70
  6. Step 6: Final answer
    x = 136,535.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.