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Finding the Fourth Proportional to 90,507.61, 135,783.36 and 27,323.96

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Solution

The fourth proportional to 90,507.61, 135,783.36 and 27,323.96 is: 40,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507.61 : 135,783.36 = 27,323.96 : x
  2. Step 2: Convert to fraction form
    90,507.61/135,783.36 = 27,323.96/x
  3. Step 3: Cross multiply
    90,507.61x = 135,783.36 × 27,323.96
  4. Step 4: Simplify right side
    90,507.61x = 3,710,139,436.76
  5. Step 5: Solve for x
    x = 3,710,139,436.76/90,507.61
  6. Step 6: Final answer
    x = 40,992.57

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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.