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Finding the Fourth Proportional to 91,332.20, 127,588.60 and 91,332.20

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Solution

The fourth proportional to 91,332.20, 127,588.60 and 91,332.20 is: 127,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,332.20 : 127,588.60 = 91,332.20 : x
  2. Step 2: Convert to fraction form
    91,332.20/127,588.60 = 91,332.20/x
  3. Step 3: Cross multiply
    91,332.20x = 127,588.60 × 91,332.20
  4. Step 4: Simplify right side
    91,332.20x = 11,652,947,532.92
  5. Step 5: Solve for x
    x = 11,652,947,532.92/91,332.20
  6. Step 6: Final answer
    x = 127,588.60

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.