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Finding the Fourth Proportional to 228,473.10, 342,724.23 and 70,688.34

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Solution

The fourth proportional to 228,473.10, 342,724.23 and 70,688.34 is: 106,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,473.10 : 342,724.23 = 70,688.34 : x
  2. Step 2: Convert to fraction form
    228,473.10/342,724.23 = 70,688.34/x
  3. Step 3: Cross multiply
    228,473.10x = 342,724.23 × 70,688.34
  4. Step 4: Simplify right side
    228,473.10x = 24,226,606,896.48
  5. Step 5: Solve for x
    x = 24,226,606,896.48/228,473.10
  6. Step 6: Final answer
    x = 106,037.02

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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.