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Finding the Fourth Proportional to 228,039.40, 342,059.10 and 94,875.40

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Solution

The fourth proportional to 228,039.40, 342,059.10 and 94,875.40 is: 142,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,039.40 : 342,059.10 = 94,875.40 : x
  2. Step 2: Convert to fraction form
    228,039.40/342,059.10 = 94,875.40/x
  3. Step 3: Cross multiply
    228,039.40x = 342,059.10 × 94,875.40
  4. Step 4: Simplify right side
    228,039.40x = 32,452,993,936.14
  5. Step 5: Solve for x
    x = 32,452,993,936.14/228,039.40
  6. Step 6: Final answer
    x = 142,313.10

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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.