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Finding the Fourth Proportional to 191,387.52, 264,118.86 and 106,510.05

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Solution

The fourth proportional to 191,387.52, 264,118.86 and 106,510.05 is: 146,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,387.52 : 264,118.86 = 106,510.05 : x
  2. Step 2: Convert to fraction form
    191,387.52/264,118.86 = 106,510.05/x
  3. Step 3: Cross multiply
    191,387.52x = 264,118.86 × 106,510.05
  4. Step 4: Simplify right side
    191,387.52x = 28,131,312,984.54
  5. Step 5: Solve for x
    x = 28,131,312,984.54/191,387.52
  6. Step 6: Final answer
    x = 146,986.14

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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.