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Finding the Fourth Proportional to 101,486.22, 140,048.06 and 56,166.08

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Solution

The fourth proportional to 101,486.22, 140,048.06 and 56,166.08 is: 77,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,486.22 : 140,048.06 = 56,166.08 : x
  2. Step 2: Convert to fraction form
    101,486.22/140,048.06 = 56,166.08/x
  3. Step 3: Cross multiply
    101,486.22x = 140,048.06 × 56,166.08
  4. Step 4: Simplify right side
    101,486.22x = 7,865,950,541.80
  5. Step 5: Solve for x
    x = 7,865,950,541.80/101,486.22
  6. Step 6: Final answer
    x = 77,507.57

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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.