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Finding the Fourth Proportional to 191,672.27, 264,509.53 and 105,634.35

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Solution

The fourth proportional to 191,672.27, 264,509.53 and 105,634.35 is: 145,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,672.27 : 264,509.53 = 105,634.35 : x
  2. Step 2: Convert to fraction form
    191,672.27/264,509.53 = 105,634.35/x
  3. Step 3: Cross multiply
    191,672.27x = 264,509.53 × 105,634.35
  4. Step 4: Simplify right side
    191,672.27x = 27,941,292,618.88
  5. Step 5: Solve for x
    x = 27,941,292,618.88/191,672.27
  6. Step 6: Final answer
    x = 145,776.40

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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.