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Finding the Fourth Proportional to 274,075.01, 378,226.31 and 153,223.01

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Solution

The fourth proportional to 274,075.01, 378,226.31 and 153,223.01 is: 211,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,075.01 : 378,226.31 = 153,223.01 : x
  2. Step 2: Convert to fraction form
    274,075.01/378,226.31 = 153,223.01/x
  3. Step 3: Cross multiply
    274,075.01x = 378,226.31 × 153,223.01
  4. Step 4: Simplify right side
    274,075.01x = 57,952,971,788.26
  5. Step 5: Solve for x
    x = 57,952,971,788.26/274,075.01
  6. Step 6: Final answer
    x = 211,449.31

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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.