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Finding the Fourth Proportional to 372,838.42, 559,289.92 and 102,966.66

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Solution

The fourth proportional to 372,838.42, 559,289.92 and 102,966.66 is: 154,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,838.42 : 559,289.92 = 102,966.66 : x
  2. Step 2: Convert to fraction form
    372,838.42/559,289.92 = 102,966.66/x
  3. Step 3: Cross multiply
    372,838.42x = 559,289.92 × 102,966.66
  4. Step 4: Simplify right side
    372,838.42x = 57,588,215,034.07
  5. Step 5: Solve for x
    x = 57,588,215,034.07/372,838.42
  6. Step 6: Final answer
    x = 154,458.91

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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.