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Finding the Fourth Proportional to 219,310.16, 302,648.47 and 118,708.16

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Solution

The fourth proportional to 219,310.16, 302,648.47 and 118,708.16 is: 163,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,310.16 : 302,648.47 = 118,708.16 : x
  2. Step 2: Convert to fraction form
    219,310.16/302,648.47 = 118,708.16/x
  3. Step 3: Cross multiply
    219,310.16x = 302,648.47 × 118,708.16
  4. Step 4: Simplify right side
    219,310.16x = 35,926,841,190.50
  5. Step 5: Solve for x
    x = 35,926,841,190.50/219,310.16
  6. Step 6: Final answer
    x = 163,817.50

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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.