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Finding the Fourth Proportional to 480,076.72, 720,213.40 and 164,558.16

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Solution

The fourth proportional to 480,076.72, 720,213.40 and 164,558.16 is: 246,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,076.72 : 720,213.40 = 164,558.16 : x
  2. Step 2: Convert to fraction form
    480,076.72/720,213.40 = 164,558.16/x
  3. Step 3: Cross multiply
    480,076.72x = 720,213.40 × 164,558.16
  4. Step 4: Simplify right side
    480,076.72x = 118,516,991,911.34
  5. Step 5: Solve for x
    x = 118,516,991,911.34/480,076.72
  6. Step 6: Final answer
    x = 246,870.94

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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.