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Finding the Fourth Proportional to 480,013.60, 720,020.40 and 164,442.40

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Solution

The fourth proportional to 480,013.60, 720,020.40 and 164,442.40 is: 246,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,013.60 : 720,020.40 = 164,442.40 : x
  2. Step 2: Convert to fraction form
    480,013.60/720,020.40 = 164,442.40/x
  3. Step 3: Cross multiply
    480,013.60x = 720,020.40 × 164,442.40
  4. Step 4: Simplify right side
    480,013.60x = 118,401,882,624.96
  5. Step 5: Solve for x
    x = 118,401,882,624.96/480,013.60
  6. Step 6: Final answer
    x = 246,663.60

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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.