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Finding the Fourth Proportional to 191,323.92, 286,993.12 and 97,720.32

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Solution

The fourth proportional to 191,323.92, 286,993.12 and 97,720.32 is: 146,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,323.92 : 286,993.12 = 97,720.32 : x
  2. Step 2: Convert to fraction form
    191,323.92/286,993.12 = 97,720.32/x
  3. Step 3: Cross multiply
    191,323.92x = 286,993.12 × 97,720.32
  4. Step 4: Simplify right side
    191,323.92x = 28,045,059,524.20
  5. Step 5: Solve for x
    x = 28,045,059,524.20/191,323.92
  6. Step 6: Final answer
    x = 146,584.18

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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.