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Finding the Fourth Proportional to 101,333.65, 139,837.84 and 56,008.48

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Solution

The fourth proportional to 101,333.65, 139,837.84 and 56,008.48 is: 77,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,333.65 : 139,837.84 = 56,008.48 : x
  2. Step 2: Convert to fraction form
    101,333.65/139,837.84 = 56,008.48/x
  3. Step 3: Cross multiply
    101,333.65x = 139,837.84 × 56,008.48
  4. Step 4: Simplify right side
    101,333.65x = 7,832,104,864.88
  5. Step 5: Solve for x
    x = 7,832,104,864.88/101,333.65
  6. Step 6: Final answer
    x = 77,290.27

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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.