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Finding the Fourth Proportional to 219,557.52, 302,989.41 and 118,955.52

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Solution

The fourth proportional to 219,557.52, 302,989.41 and 118,955.52 is: 164,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,557.52 : 302,989.41 = 118,955.52 : x
  2. Step 2: Convert to fraction form
    219,557.52/302,989.41 = 118,955.52/x
  3. Step 3: Cross multiply
    219,557.52x = 302,989.41 × 118,955.52
  4. Step 4: Simplify right side
    219,557.52x = 36,042,262,821.04
  5. Step 5: Solve for x
    x = 36,042,262,821.04/219,557.52
  6. Step 6: Final answer
    x = 164,158.64

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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.