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Finding the Fourth Proportional to 118,442.52, 163,623.54 and 102,499.29

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Solution

The fourth proportional to 118,442.52, 163,623.54 and 102,499.29 is: 141,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,442.52 : 163,623.54 = 102,499.29 : x
  2. Step 2: Convert to fraction form
    118,442.52/163,623.54 = 102,499.29/x
  3. Step 3: Cross multiply
    118,442.52x = 163,623.54 × 102,499.29
  4. Step 4: Simplify right side
    118,442.52x = 16,771,296,677.29
  5. Step 5: Solve for x
    x = 16,771,296,677.29/118,442.52
  6. Step 6: Final answer
    x = 141,598.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.