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Finding the Fourth Proportional to 152,649.20, 228,973.80 and 73,917.20

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Solution

The fourth proportional to 152,649.20, 228,973.80 and 73,917.20 is: 110,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,649.20 : 228,973.80 = 73,917.20 : x
  2. Step 2: Convert to fraction form
    152,649.20/228,973.80 = 73,917.20/x
  3. Step 3: Cross multiply
    152,649.20x = 228,973.80 × 73,917.20
  4. Step 4: Simplify right side
    152,649.20x = 16,925,102,169.36
  5. Step 5: Solve for x
    x = 16,925,102,169.36/152,649.20
  6. Step 6: Final answer
    x = 110,875.80

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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.