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Finding the Fourth Proportional to 61,111.60, 91,667.40 and 53,724.40

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Solution

The fourth proportional to 61,111.60, 91,667.40 and 53,724.40 is: 80,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,111.60 : 91,667.40 = 53,724.40 : x
  2. Step 2: Convert to fraction form
    61,111.60/91,667.40 = 53,724.40/x
  3. Step 3: Cross multiply
    61,111.60x = 91,667.40 × 53,724.40
  4. Step 4: Simplify right side
    61,111.60x = 4,924,776,064.56
  5. Step 5: Solve for x
    x = 4,924,776,064.56/61,111.60
  6. Step 6: Final answer
    x = 80,586.60

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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.