Home / 353,981.16-531,088.38-129,410.28

Finding the Fourth Proportional to 353,981.16, 531,088.38 and 129,410.28

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Solution

The fourth proportional to 353,981.16, 531,088.38 and 129,410.28 is: 194,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,981.16 : 531,088.38 = 129,410.28 : x
  2. Step 2: Convert to fraction form
    353,981.16/531,088.38 = 129,410.28/x
  3. Step 3: Cross multiply
    353,981.16x = 531,088.38 × 129,410.28
  4. Step 4: Simplify right side
    353,981.16x = 68,728,295,960.55
  5. Step 5: Solve for x
    x = 68,728,295,960.55/353,981.16
  6. Step 6: Final answer
    x = 194,158.06

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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.