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Finding the Fourth Proportional to 480,018.60, 720,027.90 and 147,594.60

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Solution

The fourth proportional to 480,018.60, 720,027.90 and 147,594.60 is: 221,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,018.60 : 720,027.90 = 147,594.60 : x
  2. Step 2: Convert to fraction form
    480,018.60/720,027.90 = 147,594.60/x
  3. Step 3: Cross multiply
    480,018.60x = 720,027.90 × 147,594.60
  4. Step 4: Simplify right side
    480,018.60x = 106,272,229,889.34
  5. Step 5: Solve for x
    x = 106,272,229,889.34/480,018.60
  6. Step 6: Final answer
    x = 221,391.90

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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.