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Finding the Fourth Proportional to 483,709.30, 725,565.71 and 146,752.81

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Solution

The fourth proportional to 483,709.30, 725,565.71 and 146,752.81 is: 220,129.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,709.30 : 725,565.71 = 146,752.81 : x
  2. Step 2: Convert to fraction form
    483,709.30/725,565.71 = 146,752.81/x
  3. Step 3: Cross multiply
    483,709.30x = 725,565.71 × 146,752.81
  4. Step 4: Simplify right side
    483,709.30x = 106,478,806,782.15
  5. Step 5: Solve for x
    x = 106,478,806,782.15/483,709.30
  6. Step 6: Final answer
    x = 220,129.75

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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.