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Finding the Fourth Proportional to 191,812.83, 264,530.12 and 120,200.67

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Solution

The fourth proportional to 191,812.83, 264,530.12 and 120,200.67 is: 165,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,812.83 : 264,530.12 = 120,200.67 : x
  2. Step 2: Convert to fraction form
    191,812.83/264,530.12 = 120,200.67/x
  3. Step 3: Cross multiply
    191,812.83x = 264,530.12 × 120,200.67
  4. Step 4: Simplify right side
    191,812.83x = 31,796,697,058.18
  5. Step 5: Solve for x
    x = 31,796,697,058.18/191,812.83
  6. Step 6: Final answer
    x = 165,769.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.