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Finding the Fourth Proportional to 202,958.01, 280,075.17 and 112,317.80

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Solution

The fourth proportional to 202,958.01, 280,075.17 and 112,317.80 is: 154,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,958.01 : 280,075.17 = 112,317.80 : x
  2. Step 2: Convert to fraction form
    202,958.01/280,075.17 = 112,317.80/x
  3. Step 3: Cross multiply
    202,958.01x = 280,075.17 × 112,317.80
  4. Step 4: Simplify right side
    202,958.01x = 31,457,425,528.65
  5. Step 5: Solve for x
    x = 31,457,425,528.65/202,958.01
  6. Step 6: Final answer
    x = 154,994.75

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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.