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Finding the Fourth Proportional to 104,608.95, 144,358.65 and 56,863.50

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Solution

The fourth proportional to 104,608.95, 144,358.65 and 56,863.50 is: 78,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608.95 : 144,358.65 = 56,863.50 : x
  2. Step 2: Convert to fraction form
    104,608.95/144,358.65 = 56,863.50/x
  3. Step 3: Cross multiply
    104,608.95x = 144,358.65 × 56,863.50
  4. Step 4: Simplify right side
    104,608.95x = 8,208,738,094.28
  5. Step 5: Solve for x
    x = 8,208,738,094.28/104,608.95
  6. Step 6: Final answer
    x = 78,470.71

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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.