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Finding the Fourth Proportional to 559,572.63, 839,409.69 and 154,790.20

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Solution

The fourth proportional to 559,572.63, 839,409.69 and 154,790.20 is: 232,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,572.63 : 839,409.69 = 154,790.20 : x
  2. Step 2: Convert to fraction form
    559,572.63/839,409.69 = 154,790.20/x
  3. Step 3: Cross multiply
    559,572.63x = 839,409.69 × 154,790.20
  4. Step 4: Simplify right side
    559,572.63x = 129,932,392,278.98
  5. Step 5: Solve for x
    x = 129,932,392,278.98/559,572.63
  6. Step 6: Final answer
    x = 232,199.34

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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.