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Finding the Fourth Proportional to 110,389.44, 152,372.16 and 65,064.96

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Solution

The fourth proportional to 110,389.44, 152,372.16 and 65,064.96 is: 89,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,389.44 : 152,372.16 = 65,064.96 : x
  2. Step 2: Convert to fraction form
    110,389.44/152,372.16 = 65,064.96/x
  3. Step 3: Cross multiply
    110,389.44x = 152,372.16 × 65,064.96
  4. Step 4: Simplify right side
    110,389.44x = 9,914,088,495.51
  5. Step 5: Solve for x
    x = 9,914,088,495.51/110,389.44
  6. Step 6: Final answer
    x = 89,810.12

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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.