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Finding the Fourth Proportional to 210,914.20, 316,025.70 and 179,810.20

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Solution

The fourth proportional to 210,914.20, 316,025.70 and 179,810.20 is: 269,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,914.20 : 316,025.70 = 179,810.20 : x
  2. Step 2: Convert to fraction form
    210,914.20/316,025.70 = 179,810.20/x
  3. Step 3: Cross multiply
    210,914.20x = 316,025.70 × 179,810.20
  4. Step 4: Simplify right side
    210,914.20x = 56,824,644,322.14
  5. Step 5: Solve for x
    x = 56,824,644,322.14/210,914.20
  6. Step 6: Final answer
    x = 269,420.67

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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.