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Finding the Fourth Proportional to 104,612.58, 144,366.20 and 56,865.81

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Solution

The fourth proportional to 104,612.58, 144,366.20 and 56,865.81 is: 78,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,612.58 : 144,366.20 = 56,865.81 : x
  2. Step 2: Convert to fraction form
    104,612.58/144,366.20 = 56,865.81/x
  3. Step 3: Cross multiply
    104,612.58x = 144,366.20 × 56,865.81
  4. Step 4: Simplify right side
    104,612.58x = 8,209,501,369.91
  5. Step 5: Solve for x
    x = 8,209,501,369.91/104,612.58
  6. Step 6: Final answer
    x = 78,475.28

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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.