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Finding the Fourth Proportional to 118,540.80, 163,590.03 and 64,827.27

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Solution

The fourth proportional to 118,540.80, 163,590.03 and 64,827.27 is: 89,463.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,540.80 : 163,590.03 = 64,827.27 : x
  2. Step 2: Convert to fraction form
    118,540.80/163,590.03 = 64,827.27/x
  3. Step 3: Cross multiply
    118,540.80x = 163,590.03 × 64,827.27
  4. Step 4: Simplify right side
    118,540.80x = 10,605,095,044.12
  5. Step 5: Solve for x
    x = 10,605,095,044.12/118,540.80
  6. Step 6: Final answer
    x = 89,463.67

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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.