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Finding the Fourth Proportional to 480,096.56, 720,181.59 and 143,111.45

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Solution

The fourth proportional to 480,096.56, 720,181.59 and 143,111.45 is: 214,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,096.56 : 720,181.59 = 143,111.45 : x
  2. Step 2: Convert to fraction form
    480,096.56/720,181.59 = 143,111.45/x
  3. Step 3: Cross multiply
    480,096.56x = 720,181.59 × 143,111.45
  4. Step 4: Simplify right side
    480,096.56x = 103,066,228,007.30
  5. Step 5: Solve for x
    x = 103,066,228,007.30/480,096.56
  6. Step 6: Final answer
    x = 214,678.12

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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.