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Finding the Fourth Proportional to 274,075.51, 378,227 and 153,223.51

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Solution

The fourth proportional to 274,075.51, 378,227 and 153,223.51 is: 211,450.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,075.51 : 378,227 = 153,223.51 : x
  2. Step 2: Convert to fraction form
    274,075.51/378,227 = 153,223.51/x
  3. Step 3: Cross multiply
    274,075.51x = 378,227 × 153,223.51
  4. Step 4: Simplify right side
    274,075.51x = 57,953,266,625.64
  5. Step 5: Solve for x
    x = 57,953,266,625.64/274,075.51
  6. Step 6: Final answer
    x = 211,450.00

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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.