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Finding the Fourth Proportional to 480,074.72, 720,210.40 and 164,556.16

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Solution

The fourth proportional to 480,074.72, 720,210.40 and 164,556.16 is: 246,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,074.72 : 720,210.40 = 164,556.16 : x
  2. Step 2: Convert to fraction form
    480,074.72/720,210.40 = 164,556.16/x
  3. Step 3: Cross multiply
    480,074.72x = 720,210.40 × 164,556.16
  4. Step 4: Simplify right side
    480,074.72x = 118,515,057,816.06
  5. Step 5: Solve for x
    x = 118,515,057,816.06/480,074.72
  6. Step 6: Final answer
    x = 246,867.94

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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.