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Finding the Fourth Proportional to 146,529.78, 202,211.16 and 79,461.78

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Solution

The fourth proportional to 146,529.78, 202,211.16 and 79,461.78 is: 109,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,529.78 : 202,211.16 = 79,461.78 : x
  2. Step 2: Convert to fraction form
    146,529.78/202,211.16 = 79,461.78/x
  3. Step 3: Cross multiply
    146,529.78x = 202,211.16 × 79,461.78
  4. Step 4: Simplify right side
    146,529.78x = 16,068,058,709.46
  5. Step 5: Solve for x
    x = 16,068,058,709.46/146,529.78
  6. Step 6: Final answer
    x = 109,657.29

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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.