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Finding the Fourth Proportional to 118,063.61, 162,927.79 and 64,348.62

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Solution

The fourth proportional to 118,063.61, 162,927.79 and 64,348.62 is: 88,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,063.61 : 162,927.79 = 64,348.62 : x
  2. Step 2: Convert to fraction form
    118,063.61/162,927.79 = 64,348.62/x
  3. Step 3: Cross multiply
    118,063.61x = 162,927.79 × 64,348.62
  4. Step 4: Simplify right side
    118,063.61x = 10,484,178,446.15
  5. Step 5: Solve for x
    x = 10,484,178,446.15/118,063.61
  6. Step 6: Final answer
    x = 88,801.10

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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.