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Finding the Fourth Proportional to 30,242,769.44, 41,742,978 and 17,197,675.04

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Solution

The fourth proportional to 30,242,769.44, 41,742,978 and 17,197,675.04 is: 23,737,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,242,769.44 : 41,742,978 = 17,197,675.04 : x
  2. Step 2: Convert to fraction form
    30,242,769.44/41,742,978 = 17,197,675.04/x
  3. Step 3: Cross multiply
    30,242,769.44x = 41,742,978 × 17,197,675.04
  4. Step 4: Simplify right side
    30,242,769.44x = 717,882,170,845,869.12
  5. Step 5: Solve for x
    x = 717,882,170,845,869.12/30,242,769.44
  6. Step 6: Final answer
    x = 23,737,315.87

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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.