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Finding the Fourth Proportional to 191,115.60, 286,705.80 and 57,994.80

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Solution

The fourth proportional to 191,115.60, 286,705.80 and 57,994.80 is: 87,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,115.60 : 286,705.80 = 57,994.80 : x
  2. Step 2: Convert to fraction form
    191,115.60/286,705.80 = 57,994.80/x
  3. Step 3: Cross multiply
    191,115.60x = 286,705.80 × 57,994.80
  4. Step 4: Simplify right side
    191,115.60x = 16,627,445,529.84
  5. Step 5: Solve for x
    x = 16,627,445,529.84/191,115.60
  6. Step 6: Final answer
    x = 87,002.03

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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.