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Finding the Fourth Proportional to 191,529.96, 264,191.59 and 137,729.76

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Solution

The fourth proportional to 191,529.96, 264,191.59 and 137,729.76 is: 189,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,529.96 : 264,191.59 = 137,729.76 : x
  2. Step 2: Convert to fraction form
    191,529.96/264,191.59 = 137,729.76/x
  3. Step 3: Cross multiply
    191,529.96x = 264,191.59 × 137,729.76
  4. Step 4: Simplify right side
    191,529.96x = 36,387,042,275.11
  5. Step 5: Solve for x
    x = 36,387,042,275.11/191,529.96
  6. Step 6: Final answer
    x = 189,980.95

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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.