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Finding the Fourth Proportional to 111,350.88, 153,670.50 and 66,055.68

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Solution

The fourth proportional to 111,350.88, 153,670.50 and 66,055.68 is: 91,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,350.88 : 153,670.50 = 66,055.68 : x
  2. Step 2: Convert to fraction form
    111,350.88/153,670.50 = 66,055.68/x
  3. Step 3: Cross multiply
    111,350.88x = 153,670.50 × 66,055.68
  4. Step 4: Simplify right side
    111,350.88x = 10,150,809,373.44
  5. Step 5: Solve for x
    x = 10,150,809,373.44/111,350.88
  6. Step 6: Final answer
    x = 91,160.57

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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.