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Finding the Fourth Proportional to 191,978.86, 264,807.48 and 116,527.36

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Solution

The fourth proportional to 191,978.86, 264,807.48 and 116,527.36 is: 160,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,978.86 : 264,807.48 = 116,527.36 : x
  2. Step 2: Convert to fraction form
    191,978.86/264,807.48 = 116,527.36/x
  3. Step 3: Cross multiply
    191,978.86x = 264,807.48 × 116,527.36
  4. Step 4: Simplify right side
    191,978.86x = 30,857,316,552.65
  5. Step 5: Solve for x
    x = 30,857,316,552.65/191,978.86
  6. Step 6: Final answer
    x = 160,732.89

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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.