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Finding the Fourth Proportional to 60,719.63, 90,468.96 and 57,324.32

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Solution

The fourth proportional to 60,719.63, 90,468.96 and 57,324.32 is: 85,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,719.63 : 90,468.96 = 57,324.32 : x
  2. Step 2: Convert to fraction form
    60,719.63/90,468.96 = 57,324.32/x
  3. Step 3: Cross multiply
    60,719.63x = 90,468.96 × 57,324.32
  4. Step 4: Simplify right side
    60,719.63x = 5,186,071,160.76
  5. Step 5: Solve for x
    x = 5,186,071,160.76/60,719.63
  6. Step 6: Final answer
    x = 85,410.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.