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Finding the Fourth Proportional to 146,648.45, 202,374.84 and 79,580.45

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Solution

The fourth proportional to 146,648.45, 202,374.84 and 79,580.45 is: 109,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,648.45 : 202,374.84 = 79,580.45 : x
  2. Step 2: Convert to fraction form
    146,648.45/202,374.84 = 79,580.45/x
  3. Step 3: Cross multiply
    146,648.45x = 202,374.84 × 79,580.45
  4. Step 4: Simplify right side
    146,648.45x = 16,105,079,824.00
  5. Step 5: Solve for x
    x = 16,105,079,824.00/146,648.45
  6. Step 6: Final answer
    x = 109,821.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.