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Finding the Fourth Proportional to 189,924.48, 262,176.48 and 118,339.86

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Solution

The fourth proportional to 189,924.48, 262,176.48 and 118,339.86 is: 163,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,924.48 : 262,176.48 = 118,339.86 : x
  2. Step 2: Convert to fraction form
    189,924.48/262,176.48 = 118,339.86/x
  3. Step 3: Cross multiply
    189,924.48x = 262,176.48 × 118,339.86
  4. Step 4: Simplify right side
    189,924.48x = 31,025,927,938.49
  5. Step 5: Solve for x
    x = 31,025,927,938.49/189,924.48
  6. Step 6: Final answer
    x = 163,359.29

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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.