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Finding the Fourth Proportional to 99,663.68, 149,190.24 and 64,533.44

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Solution

The fourth proportional to 99,663.68, 149,190.24 and 64,533.44 is: 96,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663.68 : 149,190.24 = 64,533.44 : x
  2. Step 2: Convert to fraction form
    99,663.68/149,190.24 = 64,533.44/x
  3. Step 3: Cross multiply
    99,663.68x = 149,190.24 × 64,533.44
  4. Step 4: Simplify right side
    99,663.68x = 9,627,759,401.63
  5. Step 5: Solve for x
    x = 9,627,759,401.63/99,663.68
  6. Step 6: Final answer
    x = 96,602.49

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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.