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Finding the Fourth Proportional to 91,285.20, 136,894.59 and 35,096.40

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Solution

The fourth proportional to 91,285.20, 136,894.59 and 35,096.40 is: 52,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,285.20 : 136,894.59 = 35,096.40 : x
  2. Step 2: Convert to fraction form
    91,285.20/136,894.59 = 35,096.40/x
  3. Step 3: Cross multiply
    91,285.20x = 136,894.59 × 35,096.40
  4. Step 4: Simplify right side
    91,285.20x = 4,804,507,288.48
  5. Step 5: Solve for x
    x = 4,804,507,288.48/91,285.20
  6. Step 6: Final answer
    x = 52,631.83

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1.5x scale

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.