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Finding the Fourth Proportional to 203,227.20, 304,840.80 and 124,430.40

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Solution

The fourth proportional to 203,227.20, 304,840.80 and 124,430.40 is: 186,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,227.20 : 304,840.80 = 124,430.40 : x
  2. Step 2: Convert to fraction form
    203,227.20/304,840.80 = 124,430.40/x
  3. Step 3: Cross multiply
    203,227.20x = 304,840.80 × 124,430.40
  4. Step 4: Simplify right side
    203,227.20x = 37,931,462,680.32
  5. Step 5: Solve for x
    x = 37,931,462,680.32/203,227.20
  6. Step 6: Final answer
    x = 186,645.60

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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.