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Finding the Fourth Proportional to 240,620.75, 360,728.11 and 151,678.16

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Solution

The fourth proportional to 240,620.75, 360,728.11 and 151,678.16 is: 227,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,620.75 : 360,728.11 = 151,678.16 : x
  2. Step 2: Convert to fraction form
    240,620.75/360,728.11 = 151,678.16/x
  3. Step 3: Cross multiply
    240,620.75x = 360,728.11 × 151,678.16
  4. Step 4: Simplify right side
    240,620.75x = 54,714,575,985.08
  5. Step 5: Solve for x
    x = 54,714,575,985.08/240,620.75
  6. Step 6: Final answer
    x = 227,389.27

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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.