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Finding the Fourth Proportional to 247,072.34, 340,846.65 and 145,095.98

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Solution

The fourth proportional to 247,072.34, 340,846.65 and 145,095.98 is: 200,165.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,072.34 : 340,846.65 = 145,095.98 : x
  2. Step 2: Convert to fraction form
    247,072.34/340,846.65 = 145,095.98/x
  3. Step 3: Cross multiply
    247,072.34x = 340,846.65 × 145,095.98
  4. Step 4: Simplify right side
    247,072.34x = 49,455,477,007.23
  5. Step 5: Solve for x
    x = 49,455,477,007.23/247,072.34
  6. Step 6: Final answer
    x = 200,165.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.