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Finding the Fourth Proportional to 70,358.48, 105,538.24 and 17,767.98

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Solution

The fourth proportional to 70,358.48, 105,538.24 and 17,767.98 is: 26,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,358.48 : 105,538.24 = 17,767.98 : x
  2. Step 2: Convert to fraction form
    70,358.48/105,538.24 = 17,767.98/x
  3. Step 3: Cross multiply
    70,358.48x = 105,538.24 × 17,767.98
  4. Step 4: Simplify right side
    70,358.48x = 1,875,201,359.77
  5. Step 5: Solve for x
    x = 1,875,201,359.77/70,358.48
  6. Step 6: Final answer
    x = 26,652.10

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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.