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Finding the Fourth Proportional to 110,903.36, 153,063.92 and 70,634.48

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Solution

The fourth proportional to 110,903.36, 153,063.92 and 70,634.48 is: 97,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,903.36 : 153,063.92 = 70,634.48 : x
  2. Step 2: Convert to fraction form
    110,903.36/153,063.92 = 70,634.48/x
  3. Step 3: Cross multiply
    110,903.36x = 153,063.92 × 70,634.48
  4. Step 4: Simplify right side
    110,903.36x = 10,811,590,395.96
  5. Step 5: Solve for x
    x = 10,811,590,395.96/110,903.36
  6. Step 6: Final answer
    x = 97,486.59

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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.