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Finding the Fourth Proportional to 73,774.24, 101,779.44 and 45,430.72

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Solution

The fourth proportional to 73,774.24, 101,779.44 and 45,430.72 is: 62,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,774.24 : 101,779.44 = 45,430.72 : x
  2. Step 2: Convert to fraction form
    73,774.24/101,779.44 = 45,430.72/x
  3. Step 3: Cross multiply
    73,774.24x = 101,779.44 × 45,430.72
  4. Step 4: Simplify right side
    73,774.24x = 4,623,913,240.40
  5. Step 5: Solve for x
    x = 4,623,913,240.40/73,774.24
  6. Step 6: Final answer
    x = 62,676.53

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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.