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Finding the Fourth Proportional to 178,840.80, 246,821.76 and 107,260.20

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Solution

The fourth proportional to 178,840.80, 246,821.76 and 107,260.20 is: 148,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,840.80 : 246,821.76 = 107,260.20 : x
  2. Step 2: Convert to fraction form
    178,840.80/246,821.76 = 107,260.20/x
  3. Step 3: Cross multiply
    178,840.80x = 246,821.76 × 107,260.20
  4. Step 4: Simplify right side
    178,840.80x = 26,474,151,341.95
  5. Step 5: Solve for x
    x = 26,474,151,341.95/178,840.80
  6. Step 6: Final answer
    x = 148,031.94

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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.