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Finding the Fourth Proportional to 73,313.38, 101,172.40 and 39,779.38

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Solution

The fourth proportional to 73,313.38, 101,172.40 and 39,779.38 is: 54,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,313.38 : 101,172.40 = 39,779.38 : x
  2. Step 2: Convert to fraction form
    73,313.38/101,172.40 = 39,779.38/x
  3. Step 3: Cross multiply
    73,313.38x = 101,172.40 × 39,779.38
  4. Step 4: Simplify right side
    73,313.38x = 4,024,575,345.11
  5. Step 5: Solve for x
    x = 4,024,575,345.11/73,313.38
  6. Step 6: Final answer
    x = 54,895.51

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1.5x scale

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.