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Finding the Fourth Proportional to 191,120.60, 286,713.30 and 57,999.80

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Solution

The fourth proportional to 191,120.60, 286,713.30 and 57,999.80 is: 87,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,120.60 : 286,713.30 = 57,999.80 : x
  2. Step 2: Convert to fraction form
    191,120.60/286,713.30 = 57,999.80/x
  3. Step 3: Cross multiply
    191,120.60x = 286,713.30 × 57,999.80
  4. Step 4: Simplify right side
    191,120.60x = 16,629,314,057.34
  5. Step 5: Solve for x
    x = 16,629,314,057.34/191,120.60
  6. Step 6: Final answer
    x = 87,009.53

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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.