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Finding the Fourth Proportional to 220,558.60, 330,973.98 and 102,207.88

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Solution

The fourth proportional to 220,558.60, 330,973.98 and 102,207.88 is: 153,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,558.60 : 330,973.98 = 102,207.88 : x
  2. Step 2: Convert to fraction form
    220,558.60/330,973.98 = 102,207.88/x
  3. Step 3: Cross multiply
    220,558.60x = 330,973.98 × 102,207.88
  4. Step 4: Simplify right side
    220,558.60x = 33,828,148,830.96
  5. Step 5: Solve for x
    x = 33,828,148,830.96/220,558.60
  6. Step 6: Final answer
    x = 153,374.88

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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.