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Finding the Fourth Proportional to 210,392.37, 315,588.60 and 52,620.84

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Solution

The fourth proportional to 210,392.37, 315,588.60 and 52,620.84 is: 78,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,392.37 : 315,588.60 = 52,620.84 : x
  2. Step 2: Convert to fraction form
    210,392.37/315,588.60 = 52,620.84/x
  3. Step 3: Cross multiply
    210,392.37x = 315,588.60 × 52,620.84
  4. Step 4: Simplify right side
    210,392.37x = 16,606,537,226.42
  5. Step 5: Solve for x
    x = 16,606,537,226.42/210,392.37
  6. Step 6: Final answer
    x = 78,931.27

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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.