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Finding the Fourth Proportional to 104,674.48, 144,451.76 and 56,928.80

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Solution

The fourth proportional to 104,674.48, 144,451.76 and 56,928.80 is: 78,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,674.48 : 144,451.76 = 56,928.80 : x
  2. Step 2: Convert to fraction form
    104,674.48/144,451.76 = 56,928.80/x
  3. Step 3: Cross multiply
    104,674.48x = 144,451.76 × 56,928.80
  4. Step 4: Simplify right side
    104,674.48x = 8,223,465,354.69
  5. Step 5: Solve for x
    x = 8,223,465,354.69/104,674.48
  6. Step 6: Final answer
    x = 78,562.28

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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.