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Finding the Fourth Proportional to 219,909.60, 330,026.40 and 148,664.16

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Solution

The fourth proportional to 219,909.60, 330,026.40 and 148,664.16 is: 223,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,909.60 : 330,026.40 = 148,664.16 : x
  2. Step 2: Convert to fraction form
    219,909.60/330,026.40 = 148,664.16/x
  3. Step 3: Cross multiply
    219,909.60x = 330,026.40 × 148,664.16
  4. Step 4: Simplify right side
    219,909.60x = 49,063,097,533.82
  5. Step 5: Solve for x
    x = 49,063,097,533.82/219,909.60
  6. Step 6: Final answer
    x = 223,105.76

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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.