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Finding the Fourth Proportional to 93,330.46, 140,042.40 and 42,729.39

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Solution

The fourth proportional to 93,330.46, 140,042.40 and 42,729.39 is: 64,115.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,330.46 : 140,042.40 = 42,729.39 : x
  2. Step 2: Convert to fraction form
    93,330.46/140,042.40 = 42,729.39/x
  3. Step 3: Cross multiply
    93,330.46x = 140,042.40 × 42,729.39
  4. Step 4: Simplify right side
    93,330.46x = 5,983,926,406.25
  5. Step 5: Solve for x
    x = 5,983,926,406.25/93,330.46
  6. Step 6: Final answer
    x = 64,115.47

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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.