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Finding the Fourth Proportional to 104,374.80, 144,037.80 and 56,628.24

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Solution

The fourth proportional to 104,374.80, 144,037.80 and 56,628.24 is: 78,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,374.80 : 144,037.80 = 56,628.24 : x
  2. Step 2: Convert to fraction form
    104,374.80/144,037.80 = 56,628.24/x
  3. Step 3: Cross multiply
    104,374.80x = 144,037.80 × 56,628.24
  4. Step 4: Simplify right side
    104,374.80x = 8,156,607,107.47
  5. Step 5: Solve for x
    x = 8,156,607,107.47/104,374.80
  6. Step 6: Final answer
    x = 78,147.28

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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.