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Finding the Fourth Proportional to 118,169, 177,215.16 and 39,262.04

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Solution

The fourth proportional to 118,169, 177,215.16 and 39,262.04 is: 58,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,169 : 177,215.16 = 39,262.04 : x
  2. Step 2: Convert to fraction form
    118,169/177,215.16 = 39,262.04/x
  3. Step 3: Cross multiply
    118,169x = 177,215.16 × 39,262.04
  4. Step 4: Simplify right side
    118,169x = 6,957,828,700.53
  5. Step 5: Solve for x
    x = 6,957,828,700.53/118,169
  6. Step 6: Final answer
    x = 58,880.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.