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Finding the Fourth Proportional to 113,855.48, 157,108.60 and 66,099.48

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Solution

The fourth proportional to 113,855.48, 157,108.60 and 66,099.48 is: 91,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,855.48 : 157,108.60 = 66,099.48 : x
  2. Step 2: Convert to fraction form
    113,855.48/157,108.60 = 66,099.48/x
  3. Step 3: Cross multiply
    113,855.48x = 157,108.60 × 66,099.48
  4. Step 4: Simplify right side
    113,855.48x = 10,384,796,763.53
  5. Step 5: Solve for x
    x = 10,384,796,763.53/113,855.48
  6. Step 6: Final answer
    x = 91,210.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.