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Finding the Fourth Proportional to 59,812.76, 89,719.28 and 56,159.12

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Solution

The fourth proportional to 59,812.76, 89,719.28 and 56,159.12 is: 84,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,812.76 : 89,719.28 = 56,159.12 : x
  2. Step 2: Convert to fraction form
    59,812.76/89,719.28 = 56,159.12/x
  3. Step 3: Cross multiply
    59,812.76x = 89,719.28 × 56,159.12
  4. Step 4: Simplify right side
    59,812.76x = 5,038,555,965.93
  5. Step 5: Solve for x
    x = 5,038,555,965.93/59,812.76
  6. Step 6: Final answer
    x = 84,238.81

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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.