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Finding the Fourth Proportional to 70,455.29, 105,616.10 and 26,051.90

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Solution

The fourth proportional to 70,455.29, 105,616.10 and 26,051.90 is: 39,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.29 : 105,616.10 = 26,051.90 : x
  2. Step 2: Convert to fraction form
    70,455.29/105,616.10 = 26,051.90/x
  3. Step 3: Cross multiply
    70,455.29x = 105,616.10 × 26,051.90
  4. Step 4: Simplify right side
    70,455.29x = 2,751,499,612.64
  5. Step 5: Solve for x
    x = 2,751,499,612.64/70,455.29
  6. Step 6: Final answer
    x = 39,053.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.