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Finding the Fourth Proportional to 66,483.36, 99,335.69 and 64,157.85

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Solution

The fourth proportional to 66,483.36, 99,335.69 and 64,157.85 is: 95,861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.36 : 99,335.69 = 64,157.85 : x
  2. Step 2: Convert to fraction form
    66,483.36/99,335.69 = 64,157.85/x
  3. Step 3: Cross multiply
    66,483.36x = 99,335.69 × 64,157.85
  4. Step 4: Simplify right side
    66,483.36x = 6,373,163,977.88
  5. Step 5: Solve for x
    x = 6,373,163,977.88/66,483.36
  6. Step 6: Final answer
    x = 95,861.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.