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Finding the Fourth Proportional to 104,695.64, 144,478.50 and 56,949.32

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Solution

The fourth proportional to 104,695.64, 144,478.50 and 56,949.32 is: 78,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,695.64 : 144,478.50 = 56,949.32 : x
  2. Step 2: Convert to fraction form
    104,695.64/144,478.50 = 56,949.32/x
  3. Step 3: Cross multiply
    104,695.64x = 144,478.50 × 56,949.32
  4. Step 4: Simplify right side
    104,695.64x = 8,227,952,329.62
  5. Step 5: Solve for x
    x = 8,227,952,329.62/104,695.64
  6. Step 6: Final answer
    x = 78,589.25

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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.