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Finding the Fourth Proportional to 162,065.99, 223,673.61 and 90,450.63

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Solution

The fourth proportional to 162,065.99, 223,673.61 and 90,450.63 is: 124,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,065.99 : 223,673.61 = 90,450.63 : x
  2. Step 2: Convert to fraction form
    162,065.99/223,673.61 = 90,450.63/x
  3. Step 3: Cross multiply
    162,065.99x = 223,673.61 × 90,450.63
  4. Step 4: Simplify right side
    162,065.99x = 20,231,418,938.87
  5. Step 5: Solve for x
    x = 20,231,418,938.87/162,065.99
  6. Step 6: Final answer
    x = 124,834.45

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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.