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Finding the Fourth Proportional to 104,690.30, 144,474.99 and 56,946.20

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Solution

The fourth proportional to 104,690.30, 144,474.99 and 56,946.20 is: 78,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.30 : 144,474.99 = 56,946.20 : x
  2. Step 2: Convert to fraction form
    104,690.30/144,474.99 = 56,946.20/x
  3. Step 3: Cross multiply
    104,690.30x = 144,474.99 × 56,946.20
  4. Step 4: Simplify right side
    104,690.30x = 8,227,301,675.54
  5. Step 5: Solve for x
    x = 8,227,301,675.54/104,690.30
  6. Step 6: Final answer
    x = 78,587.05

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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.