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Finding the Fourth Proportional to 243,079.20, 364,601.52 and 65,596.32

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Solution

The fourth proportional to 243,079.20, 364,601.52 and 65,596.32 is: 98,389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,079.20 : 364,601.52 = 65,596.32 : x
  2. Step 2: Convert to fraction form
    243,079.20/364,601.52 = 65,596.32/x
  3. Step 3: Cross multiply
    243,079.20x = 364,601.52 × 65,596.32
  4. Step 4: Simplify right side
    243,079.20x = 23,916,517,978.41
  5. Step 5: Solve for x
    x = 23,916,517,978.41/243,079.20
  6. Step 6: Final answer
    x = 98,389.82

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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.