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Finding the Fourth Proportional to 191,904.60, 287,856.90 and 58,783.80

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Solution

The fourth proportional to 191,904.60, 287,856.90 and 58,783.80 is: 88,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,904.60 : 287,856.90 = 58,783.80 : x
  2. Step 2: Convert to fraction form
    191,904.60/287,856.90 = 58,783.80/x
  3. Step 3: Cross multiply
    191,904.60x = 287,856.90 × 58,783.80
  4. Step 4: Simplify right side
    191,904.60x = 16,921,322,438.22
  5. Step 5: Solve for x
    x = 16,921,322,438.22/191,904.60
  6. Step 6: Final answer
    x = 88,175.70

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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.