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Finding the Fourth Proportional to 104,722.48, 144,518.50 and 56,975.86

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Solution

The fourth proportional to 104,722.48, 144,518.50 and 56,975.86 is: 78,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,722.48 : 144,518.50 = 56,975.86 : x
  2. Step 2: Convert to fraction form
    104,722.48/144,518.50 = 56,975.86/x
  3. Step 3: Cross multiply
    104,722.48x = 144,518.50 × 56,975.86
  4. Step 4: Simplify right side
    104,722.48x = 8,234,065,754.79
  5. Step 5: Solve for x
    x = 8,234,065,754.79/104,722.48
  6. Step 6: Final answer
    x = 78,627.49

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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.