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Finding the Fourth Proportional to 112,175.01, 154,799.06 and 61,874.01

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Solution

The fourth proportional to 112,175.01, 154,799.06 and 61,874.01 is: 85,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,175.01 : 154,799.06 = 61,874.01 : x
  2. Step 2: Convert to fraction form
    112,175.01/154,799.06 = 61,874.01/x
  3. Step 3: Cross multiply
    112,175.01x = 154,799.06 × 61,874.01
  4. Step 4: Simplify right side
    112,175.01x = 9,578,038,277.06
  5. Step 5: Solve for x
    x = 9,578,038,277.06/112,175.01
  6. Step 6: Final answer
    x = 85,384.78

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1.5x scale

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.