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Finding the Fourth Proportional to 228,004.70, 342,007.05 and 123,028.70

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Solution

The fourth proportional to 228,004.70, 342,007.05 and 123,028.70 is: 184,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,004.70 : 342,007.05 = 123,028.70 : x
  2. Step 2: Convert to fraction form
    228,004.70/342,007.05 = 123,028.70/x
  3. Step 3: Cross multiply
    228,004.70x = 342,007.05 × 123,028.70
  4. Step 4: Simplify right side
    228,004.70x = 42,076,682,752.34
  5. Step 5: Solve for x
    x = 42,076,682,752.34/228,004.70
  6. Step 6: Final answer
    x = 184,543.05

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1.5x scale

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.