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Finding the Fourth Proportional to 118,349.65, 163,323.63 and 67,359.88

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Solution

The fourth proportional to 118,349.65, 163,323.63 and 67,359.88 is: 92,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,349.65 : 163,323.63 = 67,359.88 : x
  2. Step 2: Convert to fraction form
    118,349.65/163,323.63 = 67,359.88/x
  3. Step 3: Cross multiply
    118,349.65x = 163,323.63 × 67,359.88
  4. Step 4: Simplify right side
    118,349.65x = 11,001,460,117.96
  5. Step 5: Solve for x
    x = 11,001,460,117.96/118,349.65
  6. Step 6: Final answer
    x = 92,957.27

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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.