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Finding the Fourth Proportional to 99,696.32, 137,580.34 and 54,373.44

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Solution

The fourth proportional to 99,696.32, 137,580.34 and 54,373.44 is: 75,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,696.32 : 137,580.34 = 54,373.44 : x
  2. Step 2: Convert to fraction form
    99,696.32/137,580.34 = 54,373.44/x
  3. Step 3: Cross multiply
    99,696.32x = 137,580.34 × 54,373.44
  4. Step 4: Simplify right side
    99,696.32x = 7,480,716,362.17
  5. Step 5: Solve for x
    x = 7,480,716,362.17/99,696.32
  6. Step 6: Final answer
    x = 75,035.03

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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.