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Finding the Fourth Proportional to 59,423.36, 81,831.40 and 55,624.40

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Solution

The fourth proportional to 59,423.36, 81,831.40 and 55,624.40 is: 76,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,423.36 : 81,831.40 = 55,624.40 : x
  2. Step 2: Convert to fraction form
    59,423.36/81,831.40 = 55,624.40/x
  3. Step 3: Cross multiply
    59,423.36x = 81,831.40 × 55,624.40
  4. Step 4: Simplify right side
    59,423.36x = 4,551,822,526.16
  5. Step 5: Solve for x
    x = 4,551,822,526.16/59,423.36
  6. Step 6: Final answer
    x = 76,599.88

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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.