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Finding the Fourth Proportional to 191,025.80, 286,144.92 and 111,900.16

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Solution

The fourth proportional to 191,025.80, 286,144.92 and 111,900.16 is: 167,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,025.80 : 286,144.92 = 111,900.16 : x
  2. Step 2: Convert to fraction form
    191,025.80/286,144.92 = 111,900.16/x
  3. Step 3: Cross multiply
    191,025.80x = 286,144.92 × 111,900.16
  4. Step 4: Simplify right side
    191,025.80x = 32,019,662,331.19
  5. Step 5: Solve for x
    x = 32,019,662,331.19/191,025.80
  6. Step 6: Final answer
    x = 167,619.57

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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.