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Finding the Fourth Proportional to 191,563.52, 264,400.64 and 124,378.88

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Solution

The fourth proportional to 191,563.52, 264,400.64 and 124,378.88 is: 171,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,563.52 : 264,400.64 = 124,378.88 : x
  2. Step 2: Convert to fraction form
    191,563.52/264,400.64 = 124,378.88/x
  3. Step 3: Cross multiply
    191,563.52x = 264,400.64 × 124,378.88
  4. Step 4: Simplify right side
    191,563.52x = 32,885,855,474.48
  5. Step 5: Solve for x
    x = 32,885,855,474.48/191,563.52
  6. Step 6: Final answer
    x = 171,670.76

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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.