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Finding the Fourth Proportional to 479,471.16, 719,219.70 and 124,477.32

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Solution

The fourth proportional to 479,471.16, 719,219.70 and 124,477.32 is: 186,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,471.16 : 719,219.70 = 124,477.32 : x
  2. Step 2: Convert to fraction form
    479,471.16/719,219.70 = 124,477.32/x
  3. Step 3: Cross multiply
    479,471.16x = 719,219.70 × 124,477.32
  4. Step 4: Simplify right side
    479,471.16x = 89,526,540,747.20
  5. Step 5: Solve for x
    x = 89,526,540,747.20/479,471.16
  6. Step 6: Final answer
    x = 186,719.34

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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.