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Finding the Fourth Proportional to 75,931.32, 113,776.02 and 69,364.92

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Solution

The fourth proportional to 75,931.32, 113,776.02 and 69,364.92 is: 103,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,931.32 : 113,776.02 = 69,364.92 : x
  2. Step 2: Convert to fraction form
    75,931.32/113,776.02 = 69,364.92/x
  3. Step 3: Cross multiply
    75,931.32x = 113,776.02 × 69,364.92
  4. Step 4: Simplify right side
    75,931.32x = 7,892,064,525.22
  5. Step 5: Solve for x
    x = 7,892,064,525.22/75,931.32
  6. Step 6: Final answer
    x = 103,936.88

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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.