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Finding the Fourth Proportional to 90,525.68, 135,788.52 and 48,277.77

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Solution

The fourth proportional to 90,525.68, 135,788.52 and 48,277.77 is: 72,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,525.68 : 135,788.52 = 48,277.77 : x
  2. Step 2: Convert to fraction form
    90,525.68/135,788.52 = 48,277.77/x
  3. Step 3: Cross multiply
    90,525.68x = 135,788.52 × 48,277.77
  4. Step 4: Simplify right side
    90,525.68x = 6,555,566,518.51
  5. Step 5: Solve for x
    x = 6,555,566,518.51/90,525.68
  6. Step 6: Final answer
    x = 72,416.65

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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.