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Finding the Fourth Proportional to 340,848.40, 511,227.80 and 104,214.80

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Solution

The fourth proportional to 340,848.40, 511,227.80 and 104,214.80 is: 156,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,848.40 : 511,227.80 = 104,214.80 : x
  2. Step 2: Convert to fraction form
    340,848.40/511,227.80 = 104,214.80/x
  3. Step 3: Cross multiply
    340,848.40x = 511,227.80 × 104,214.80
  4. Step 4: Simplify right side
    340,848.40x = 53,277,502,931.44
  5. Step 5: Solve for x
    x = 53,277,502,931.44/340,848.40
  6. Step 6: Final answer
    x = 156,308.50

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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.