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Finding the Fourth Proportional to 210,468.37, 315,705.29 and 70,227.00

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Solution

The fourth proportional to 210,468.37, 315,705.29 and 70,227.00 is: 105,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,468.37 : 315,705.29 = 70,227.00 : x
  2. Step 2: Convert to fraction form
    210,468.37/315,705.29 = 70,227.00/x
  3. Step 3: Cross multiply
    210,468.37x = 315,705.29 × 70,227.00
  4. Step 4: Simplify right side
    210,468.37x = 22,171,034,392.50
  5. Step 5: Solve for x
    x = 22,171,034,392.50/210,468.37
  6. Step 6: Final answer
    x = 105,341.41

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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.