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Finding the Fourth Proportional to 112,175.06, 154,801.59 and 61,874.06

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Solution

The fourth proportional to 112,175.06, 154,801.59 and 61,874.06 is: 85,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,175.06 : 154,801.59 = 61,874.06 : x
  2. Step 2: Convert to fraction form
    112,175.06/154,801.59 = 61,874.06/x
  3. Step 3: Cross multiply
    112,175.06x = 154,801.59 × 61,874.06
  4. Step 4: Simplify right side
    112,175.06x = 9,578,203,254.76
  5. Step 5: Solve for x
    x = 9,578,203,254.76/112,175.06
  6. Step 6: Final answer
    x = 85,386.21

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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.