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Finding the Fourth Proportional to 292,148.60, 438,093.30 and 134,425.40

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Solution

The fourth proportional to 292,148.60, 438,093.30 and 134,425.40 is: 201,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,148.60 : 438,093.30 = 134,425.40 : x
  2. Step 2: Convert to fraction form
    292,148.60/438,093.30 = 134,425.40/x
  3. Step 3: Cross multiply
    292,148.60x = 438,093.30 × 134,425.40
  4. Step 4: Simplify right side
    292,148.60x = 58,890,867,089.82
  5. Step 5: Solve for x
    x = 58,890,867,089.82/292,148.60
  6. Step 6: Final answer
    x = 201,578.47

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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.