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Finding the Fourth Proportional to 167,445, 231,075.72 and 91,995.12

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Solution

The fourth proportional to 167,445, 231,075.72 and 91,995.12 is: 126,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,445 : 231,075.72 = 91,995.12 : x
  2. Step 2: Convert to fraction form
    167,445/231,075.72 = 91,995.12/x
  3. Step 3: Cross multiply
    167,445x = 231,075.72 × 91,995.12
  4. Step 4: Simplify right side
    167,445x = 21,257,838,590.49
  5. Step 5: Solve for x
    x = 21,257,838,590.49/167,445
  6. Step 6: Final answer
    x = 126,954.16

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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.