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Finding the Fourth Proportional to 104,586.54, 144,330.54 and 56,839.89

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Solution

The fourth proportional to 104,586.54, 144,330.54 and 56,839.89 is: 78,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,586.54 : 144,330.54 = 56,839.89 : x
  2. Step 2: Convert to fraction form
    104,586.54/144,330.54 = 56,839.89/x
  3. Step 3: Cross multiply
    104,586.54x = 144,330.54 × 56,839.89
  4. Step 4: Simplify right side
    104,586.54x = 8,203,732,017.24
  5. Step 5: Solve for x
    x = 8,203,732,017.24/104,586.54
  6. Step 6: Final answer
    x = 78,439.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.