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Finding the Fourth Proportional to 112,114.53, 154,717.29 and 61,813.53

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Solution

The fourth proportional to 112,114.53, 154,717.29 and 61,813.53 is: 85,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,114.53 : 154,717.29 = 61,813.53 : x
  2. Step 2: Convert to fraction form
    112,114.53/154,717.29 = 61,813.53/x
  3. Step 3: Cross multiply
    112,114.53x = 154,717.29 × 61,813.53
  4. Step 4: Simplify right side
    112,114.53x = 9,563,621,846.93
  5. Step 5: Solve for x
    x = 9,563,621,846.93/112,114.53
  6. Step 6: Final answer
    x = 85,302.25

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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.