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Finding the Fourth Proportional to 146,999.20, 220,498.80 and 64,055.20

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Solution

The fourth proportional to 146,999.20, 220,498.80 and 64,055.20 is: 96,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,999.20 : 220,498.80 = 64,055.20 : x
  2. Step 2: Convert to fraction form
    146,999.20/220,498.80 = 64,055.20/x
  3. Step 3: Cross multiply
    146,999.20x = 220,498.80 × 64,055.20
  4. Step 4: Simplify right side
    146,999.20x = 14,124,094,733.76
  5. Step 5: Solve for x
    x = 14,124,094,733.76/146,999.20
  6. Step 6: Final answer
    x = 96,082.80

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1.5x scale

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.