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Finding the Fourth Proportional to 228,331.70, 342,497.55 and 103,672.70

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Solution

The fourth proportional to 228,331.70, 342,497.55 and 103,672.70 is: 155,509.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,331.70 : 342,497.55 = 103,672.70 : x
  2. Step 2: Convert to fraction form
    228,331.70/342,497.55 = 103,672.70/x
  3. Step 3: Cross multiply
    228,331.70x = 342,497.55 × 103,672.70
  4. Step 4: Simplify right side
    228,331.70x = 35,507,645,751.89
  5. Step 5: Solve for x
    x = 35,507,645,751.89/228,331.70
  6. Step 6: Final answer
    x = 155,509.05

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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.