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Finding the Fourth Proportional to 114,306.96, 157,762.80 and 66,588.60

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Solution

The fourth proportional to 114,306.96, 157,762.80 and 66,588.60 is: 91,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,306.96 : 157,762.80 = 66,588.60 : x
  2. Step 2: Convert to fraction form
    114,306.96/157,762.80 = 66,588.60/x
  3. Step 3: Cross multiply
    114,306.96x = 157,762.80 × 66,588.60
  4. Step 4: Simplify right side
    114,306.96x = 10,505,203,984.08
  5. Step 5: Solve for x
    x = 10,505,203,984.08/114,306.96
  6. Step 6: Final answer
    x = 91,903.45

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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.