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Finding the Fourth Proportional to 219,391.48, 302,761.02 and 118,789.48

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Solution

The fourth proportional to 219,391.48, 302,761.02 and 118,789.48 is: 163,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,391.48 : 302,761.02 = 118,789.48 : x
  2. Step 2: Convert to fraction form
    219,391.48/302,761.02 = 118,789.48/x
  3. Step 3: Cross multiply
    219,391.48x = 302,761.02 × 118,789.48
  4. Step 4: Simplify right side
    219,391.48x = 35,964,824,130.07
  5. Step 5: Solve for x
    x = 35,964,824,130.07/219,391.48
  6. Step 6: Final answer
    x = 163,929.90

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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.