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Finding the Fourth Proportional to 108,496.45, 161,931.29 and 101,410.57

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Solution

The fourth proportional to 108,496.45, 161,931.29 and 101,410.57 is: 151,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,496.45 : 161,931.29 = 101,410.57 : x
  2. Step 2: Convert to fraction form
    108,496.45/161,931.29 = 101,410.57/x
  3. Step 3: Cross multiply
    108,496.45x = 161,931.29 × 101,410.57
  4. Step 4: Simplify right side
    108,496.45x = 16,421,544,419.74
  5. Step 5: Solve for x
    x = 16,421,544,419.74/108,496.45
  6. Step 6: Final answer
    x = 151,355.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.