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Finding the Fourth Proportional to 92,068.02, 138,119.86 and 35,905.86

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Solution

The fourth proportional to 92,068.02, 138,119.86 and 35,905.86 is: 53,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,068.02 : 138,119.86 = 35,905.86 : x
  2. Step 2: Convert to fraction form
    92,068.02/138,119.86 = 35,905.86/x
  3. Step 3: Cross multiply
    92,068.02x = 138,119.86 × 35,905.86
  4. Step 4: Simplify right side
    92,068.02x = 4,959,312,356.38
  5. Step 5: Solve for x
    x = 4,959,312,356.38/92,068.02
  6. Step 6: Final answer
    x = 53,865.74

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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.