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Finding the Fourth Proportional to 92,573.69, 138,623.36 and 64,071.16

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Solution

The fourth proportional to 92,573.69, 138,623.36 and 64,071.16 is: 95,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,573.69 : 138,623.36 = 64,071.16 : x
  2. Step 2: Convert to fraction form
    92,573.69/138,623.36 = 64,071.16/x
  3. Step 3: Cross multiply
    92,573.69x = 138,623.36 × 64,071.16
  4. Step 4: Simplify right side
    92,573.69x = 8,881,758,811.38
  5. Step 5: Solve for x
    x = 8,881,758,811.38/92,573.69
  6. Step 6: Final answer
    x = 95,942.58

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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.