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Finding the Fourth Proportional to 188,755.56, 260,533.74 and 111,298.74

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Solution

The fourth proportional to 188,755.56, 260,533.74 and 111,298.74 is: 153,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,755.56 : 260,533.74 = 111,298.74 : x
  2. Step 2: Convert to fraction form
    188,755.56/260,533.74 = 111,298.74/x
  3. Step 3: Cross multiply
    188,755.56x = 260,533.74 × 111,298.74
  4. Step 4: Simplify right side
    188,755.56x = 28,997,076,989.49
  5. Step 5: Solve for x
    x = 28,997,076,989.49/188,755.56
  6. Step 6: Final answer
    x = 153,622.37

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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.