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Finding the Fourth Proportional to 114,728.55, 158,316.11 and 66,333.58

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Solution

The fourth proportional to 114,728.55, 158,316.11 and 66,333.58 is: 91,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,728.55 : 158,316.11 = 66,333.58 : x
  2. Step 2: Convert to fraction form
    114,728.55/158,316.11 = 66,333.58/x
  3. Step 3: Cross multiply
    114,728.55x = 158,316.11 × 66,333.58
  4. Step 4: Simplify right side
    114,728.55x = 10,501,674,375.47
  5. Step 5: Solve for x
    x = 10,501,674,375.47/114,728.55
  6. Step 6: Final answer
    x = 91,534.97

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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.