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Finding the Fourth Proportional to 220,003.40, 329,421.90 and 173,347.40

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Solution

The fourth proportional to 220,003.40, 329,421.90 and 173,347.40 is: 259,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,003.40 : 329,421.90 = 173,347.40 : x
  2. Step 2: Convert to fraction form
    220,003.40/329,421.90 = 173,347.40/x
  3. Step 3: Cross multiply
    220,003.40x = 329,421.90 × 173,347.40
  4. Step 4: Simplify right side
    220,003.40x = 57,104,429,868.06
  5. Step 5: Solve for x
    x = 57,104,429,868.06/220,003.40
  6. Step 6: Final answer
    x = 259,561.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.