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Finding the Fourth Proportional to 91,332.50, 136,999.02 and 35,928.50

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Solution

The fourth proportional to 91,332.50, 136,999.02 and 35,928.50 is: 53,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,332.50 : 136,999.02 = 35,928.50 : x
  2. Step 2: Convert to fraction form
    91,332.50/136,999.02 = 35,928.50/x
  3. Step 3: Cross multiply
    91,332.50x = 136,999.02 × 35,928.50
  4. Step 4: Simplify right side
    91,332.50x = 4,922,169,290.07
  5. Step 5: Solve for x
    x = 4,922,169,290.07/91,332.50
  6. Step 6: Final answer
    x = 53,892.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.