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Finding the Fourth Proportional to 219,335.61, 302,682.78 and 118,733.61

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Solution

The fourth proportional to 219,335.61, 302,682.78 and 118,733.61 is: 163,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,335.61 : 302,682.78 = 118,733.61 : x
  2. Step 2: Convert to fraction form
    219,335.61/302,682.78 = 118,733.61/x
  3. Step 3: Cross multiply
    219,335.61x = 302,682.78 × 118,733.61
  4. Step 4: Simplify right side
    219,335.61x = 35,938,619,154.24
  5. Step 5: Solve for x
    x = 35,938,619,154.24/219,335.61
  6. Step 6: Final answer
    x = 163,852.19

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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.