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Finding the Fourth Proportional to 209,803.57, 289,525.23 and 114,310.93

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Solution

The fourth proportional to 209,803.57, 289,525.23 and 114,310.93 is: 157,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,803.57 : 289,525.23 = 114,310.93 : x
  2. Step 2: Convert to fraction form
    209,803.57/289,525.23 = 114,310.93/x
  3. Step 3: Cross multiply
    209,803.57x = 289,525.23 × 114,310.93
  4. Step 4: Simplify right side
    209,803.57x = 33,095,898,299.76
  5. Step 5: Solve for x
    x = 33,095,898,299.76/209,803.57
  6. Step 6: Final answer
    x = 157,747.07

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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.