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Finding the Fourth Proportional to 73,902.07, 101,985.26 and 40,368.07

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Solution

The fourth proportional to 73,902.07, 101,985.26 and 40,368.07 is: 55,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,902.07 : 101,985.26 = 40,368.07 : x
  2. Step 2: Convert to fraction form
    73,902.07/101,985.26 = 40,368.07/x
  3. Step 3: Cross multiply
    73,902.07x = 101,985.26 × 40,368.07
  4. Step 4: Simplify right side
    73,902.07x = 4,116,948,114.65
  5. Step 5: Solve for x
    x = 4,116,948,114.65/73,902.07
  6. Step 6: Final answer
    x = 55,708.16

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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.