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Finding the Fourth Proportional to 99,611.34, 149,102.85 and 64,024.89

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Solution

The fourth proportional to 99,611.34, 149,102.85 and 64,024.89 is: 95,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,611.34 : 149,102.85 = 64,024.89 : x
  2. Step 2: Convert to fraction form
    99,611.34/149,102.85 = 64,024.89/x
  3. Step 3: Cross multiply
    99,611.34x = 149,102.85 × 64,024.89
  4. Step 4: Simplify right side
    99,611.34x = 9,546,293,569.94
  5. Step 5: Solve for x
    x = 9,546,293,569.94/99,611.34
  6. Step 6: Final answer
    x = 95,835.41

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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.