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Finding the Fourth Proportional to 101,788.75, 140,468.83 and 56,467.63

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Solution

The fourth proportional to 101,788.75, 140,468.83 and 56,467.63 is: 77,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,788.75 : 140,468.83 = 56,467.63 : x
  2. Step 2: Convert to fraction form
    101,788.75/140,468.83 = 56,467.63/x
  3. Step 3: Cross multiply
    101,788.75x = 140,468.83 × 56,467.63
  4. Step 4: Simplify right side
    101,788.75x = 7,931,942,271.02
  5. Step 5: Solve for x
    x = 7,931,942,271.02/101,788.75
  6. Step 6: Final answer
    x = 77,925.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.