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Finding the Fourth Proportional to 220,765.28, 304,647.63 and 125,266.28

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Solution

The fourth proportional to 220,765.28, 304,647.63 and 125,266.28 is: 172,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,765.28 : 304,647.63 = 125,266.28 : x
  2. Step 2: Convert to fraction form
    220,765.28/304,647.63 = 125,266.28/x
  3. Step 3: Cross multiply
    220,765.28x = 304,647.63 × 125,266.28
  4. Step 4: Simplify right side
    220,765.28x = 38,162,075,320.92
  5. Step 5: Solve for x
    x = 38,162,075,320.92/220,765.28
  6. Step 6: Final answer
    x = 172,862.67

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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.