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Finding the Fourth Proportional to 74,162.56, 111,477.12 and 64,423.12

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Solution

The fourth proportional to 74,162.56, 111,477.12 and 64,423.12 is: 96,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,162.56 : 111,477.12 = 64,423.12 : x
  2. Step 2: Convert to fraction form
    74,162.56/111,477.12 = 64,423.12/x
  3. Step 3: Cross multiply
    74,162.56x = 111,477.12 × 64,423.12
  4. Step 4: Simplify right side
    74,162.56x = 7,181,703,879.01
  5. Step 5: Solve for x
    x = 7,181,703,879.01/74,162.56
  6. Step 6: Final answer
    x = 96,837.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.