Home / 228,688.12-343,065.39-70,929.28

Finding the Fourth Proportional to 228,688.12, 343,065.39 and 70,929.28

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Solution

The fourth proportional to 228,688.12, 343,065.39 and 70,929.28 is: 106,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,688.12 : 343,065.39 = 70,929.28 : x
  2. Step 2: Convert to fraction form
    228,688.12/343,065.39 = 70,929.28/x
  3. Step 3: Cross multiply
    228,688.12x = 343,065.39 × 70,929.28
  4. Step 4: Simplify right side
    228,688.12x = 24,333,381,105.62
  5. Step 5: Solve for x
    x = 24,333,381,105.62/228,688.12
  6. Step 6: Final answer
    x = 106,404.22

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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.