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Finding the Fourth Proportional to 66,094.86, 99,145.94 and 42,868.92

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Solution

The fourth proportional to 66,094.86, 99,145.94 and 42,868.92 is: 64,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,094.86 : 99,145.94 = 42,868.92 : x
  2. Step 2: Convert to fraction form
    66,094.86/99,145.94 = 42,868.92/x
  3. Step 3: Cross multiply
    66,094.86x = 99,145.94 × 42,868.92
  4. Step 4: Simplify right side
    66,094.86x = 4,250,279,370.18
  5. Step 5: Solve for x
    x = 4,250,279,370.18/66,094.86
  6. Step 6: Final answer
    x = 64,305.75

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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.