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Finding the Fourth Proportional to 152,572.80, 228,859.20 and 123,048.30

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Solution

The fourth proportional to 152,572.80, 228,859.20 and 123,048.30 is: 184,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,572.80 : 228,859.20 = 123,048.30 : x
  2. Step 2: Convert to fraction form
    152,572.80/228,859.20 = 123,048.30/x
  3. Step 3: Cross multiply
    152,572.80x = 228,859.20 × 123,048.30
  4. Step 4: Simplify right side
    152,572.80x = 28,160,735,499.36
  5. Step 5: Solve for x
    x = 28,160,735,499.36/152,572.80
  6. Step 6: Final answer
    x = 184,572.45

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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.