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Finding the Fourth Proportional to 73,503.18, 101,434.14 and 39,969.18

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Solution

The fourth proportional to 73,503.18, 101,434.14 and 39,969.18 is: 55,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,503.18 : 101,434.14 = 39,969.18 : x
  2. Step 2: Convert to fraction form
    73,503.18/101,434.14 = 39,969.18/x
  3. Step 3: Cross multiply
    73,503.18x = 101,434.14 × 39,969.18
  4. Step 4: Simplify right side
    73,503.18x = 4,054,239,399.81
  5. Step 5: Solve for x
    x = 4,054,239,399.81/73,503.18
  6. Step 6: Final answer
    x = 55,157.33

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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.