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Finding the Fourth Proportional to 99,410.67, 137,186.72 and 54,088.67

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Solution

The fourth proportional to 99,410.67, 137,186.72 and 54,088.67 is: 74,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,410.67 : 137,186.72 = 54,088.67 : x
  2. Step 2: Convert to fraction form
    99,410.67/137,186.72 = 54,088.67/x
  3. Step 3: Cross multiply
    99,410.67x = 137,186.72 × 54,088.67
  4. Step 4: Simplify right side
    99,410.67x = 7,420,247,226.46
  5. Step 5: Solve for x
    x = 7,420,247,226.46/99,410.67
  6. Step 6: Final answer
    x = 74,642.36

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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.