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Finding the Fourth Proportional to 114,061.56, 157,393.69 and 66,318.13

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Solution

The fourth proportional to 114,061.56, 157,393.69 and 66,318.13 is: 91,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,061.56 : 157,393.69 = 66,318.13 : x
  2. Step 2: Convert to fraction form
    114,061.56/157,393.69 = 66,318.13/x
  3. Step 3: Cross multiply
    114,061.56x = 157,393.69 × 66,318.13
  4. Step 4: Simplify right side
    114,061.56x = 10,438,055,194.60
  5. Step 5: Solve for x
    x = 10,438,055,194.60/114,061.56
  6. Step 6: Final answer
    x = 91,512.47

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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.