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Finding the Fourth Proportional to 191,765.07, 264,647.66 and 105,723.63

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Solution

The fourth proportional to 191,765.07, 264,647.66 and 105,723.63 is: 145,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,765.07 : 264,647.66 = 105,723.63 : x
  2. Step 2: Convert to fraction form
    191,765.07/264,647.66 = 105,723.63/x
  3. Step 3: Cross multiply
    191,765.07x = 264,647.66 × 105,723.63
  4. Step 4: Simplify right side
    191,765.07x = 27,979,510,757.59
  5. Step 5: Solve for x
    x = 27,979,510,757.59/191,765.07
  6. Step 6: Final answer
    x = 145,905.15

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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.