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Finding the Fourth Proportional to 292,598.70, 438,910.20 and 92,913.45

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Solution

The fourth proportional to 292,598.70, 438,910.20 and 92,913.45 is: 139,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,598.70 : 438,910.20 = 92,913.45 : x
  2. Step 2: Convert to fraction form
    292,598.70/438,910.20 = 92,913.45/x
  3. Step 3: Cross multiply
    292,598.70x = 438,910.20 × 92,913.45
  4. Step 4: Simplify right side
    292,598.70x = 40,780,660,922.19
  5. Step 5: Solve for x
    x = 40,780,660,922.19/292,598.70
  6. Step 6: Final answer
    x = 139,374.03

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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.