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Finding the Fourth Proportional to 91,698.87, 137,548.31 and 60,526.83

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Solution

The fourth proportional to 91,698.87, 137,548.31 and 60,526.83 is: 90,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.87 : 137,548.31 = 60,526.83 : x
  2. Step 2: Convert to fraction form
    91,698.87/137,548.31 = 60,526.83/x
  3. Step 3: Cross multiply
    91,698.87x = 137,548.31 × 60,526.83
  4. Step 4: Simplify right side
    91,698.87x = 8,325,362,873.52
  5. Step 5: Solve for x
    x = 8,325,362,873.52/91,698.87
  6. Step 6: Final answer
    x = 90,790.25

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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.