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Finding the Fourth Proportional to 141,157.32, 194,785.48 and 77,492.92

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Solution

The fourth proportional to 141,157.32, 194,785.48 and 77,492.92 is: 106,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,157.32 : 194,785.48 = 77,492.92 : x
  2. Step 2: Convert to fraction form
    141,157.32/194,785.48 = 77,492.92/x
  3. Step 3: Cross multiply
    141,157.32x = 194,785.48 × 77,492.92
  4. Step 4: Simplify right side
    141,157.32x = 15,094,495,618.80
  5. Step 5: Solve for x
    x = 15,094,495,618.80/141,157.32
  6. Step 6: Final answer
    x = 106,933.85

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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.