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Finding the Fourth Proportional to 483,686.64, 725,531.67 and 146,730.20

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Solution

The fourth proportional to 483,686.64, 725,531.67 and 146,730.20 is: 220,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,686.64 : 725,531.67 = 146,730.20 : x
  2. Step 2: Convert to fraction form
    483,686.64/725,531.67 = 146,730.20/x
  3. Step 3: Cross multiply
    483,686.64x = 725,531.67 × 146,730.20
  4. Step 4: Simplify right side
    483,686.64x = 106,457,403,417.78
  5. Step 5: Solve for x
    x = 106,457,403,417.78/483,686.64
  6. Step 6: Final answer
    x = 220,095.81

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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.