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Finding the Fourth Proportional to 119,123.64, 178,685.46 and 92,848.20

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Solution

The fourth proportional to 119,123.64, 178,685.46 and 92,848.20 is: 139,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,123.64 : 178,685.46 = 92,848.20 : x
  2. Step 2: Convert to fraction form
    119,123.64/178,685.46 = 92,848.20/x
  3. Step 3: Cross multiply
    119,123.64x = 178,685.46 × 92,848.20
  4. Step 4: Simplify right side
    119,123.64x = 16,590,623,327.17
  5. Step 5: Solve for x
    x = 16,590,623,327.17/119,123.64
  6. Step 6: Final answer
    x = 139,272.30

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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.