Home / 345,583.40-518,340.06-92,831.06

Finding the Fourth Proportional to 345,583.40, 518,340.06 and 92,831.06

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Solution

The fourth proportional to 345,583.40, 518,340.06 and 92,831.06 is: 139,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,583.40 : 518,340.06 = 92,831.06 : x
  2. Step 2: Convert to fraction form
    345,583.40/518,340.06 = 92,831.06/x
  3. Step 3: Cross multiply
    345,583.40x = 518,340.06 × 92,831.06
  4. Step 4: Simplify right side
    345,583.40x = 48,118,054,618.56
  5. Step 5: Solve for x
    x = 48,118,054,618.56/345,583.40
  6. Step 6: Final answer
    x = 139,237.17

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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.