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Finding the Fourth Proportional to 74,636.69, 103,129.78 and 59,653.00

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Solution

The fourth proportional to 74,636.69, 103,129.78 and 59,653.00 is: 82,425.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,636.69 : 103,129.78 = 59,653.00 : x
  2. Step 2: Convert to fraction form
    74,636.69/103,129.78 = 59,653.00/x
  3. Step 3: Cross multiply
    74,636.69x = 103,129.78 × 59,653.00
  4. Step 4: Simplify right side
    74,636.69x = 6,152,000,359.38
  5. Step 5: Solve for x
    x = 6,152,000,359.38/74,636.69
  6. Step 6: Final answer
    x = 82,425.96

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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.