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Finding the Fourth Proportional to 105,957.18, 146,110.92 and 73,728.32

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Solution

The fourth proportional to 105,957.18, 146,110.92 and 73,728.32 is: 101,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,957.18 : 146,110.92 = 73,728.32 : x
  2. Step 2: Convert to fraction form
    105,957.18/146,110.92 = 73,728.32/x
  3. Step 3: Cross multiply
    105,957.18x = 146,110.92 × 73,728.32
  4. Step 4: Simplify right side
    105,957.18x = 10,772,511,658.22
  5. Step 5: Solve for x
    x = 10,772,511,658.22/105,957.18
  6. Step 6: Final answer
    x = 101,668.54

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1.5x scale

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.