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Finding the Fourth Proportional to 191,841.12, 287,712.57 and 56,873.63

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Solution

The fourth proportional to 191,841.12, 287,712.57 and 56,873.63 is: 85,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,841.12 : 287,712.57 = 56,873.63 : x
  2. Step 2: Convert to fraction form
    191,841.12/287,712.57 = 56,873.63/x
  3. Step 3: Cross multiply
    191,841.12x = 287,712.57 × 56,873.63
  4. Step 4: Simplify right side
    191,841.12x = 16,363,259,185.09
  5. Step 5: Solve for x
    x = 16,363,259,185.09/191,841.12
  6. Step 6: Final answer
    x = 85,295.89

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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.