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Finding the Fourth Proportional to 72,973.64, 100,636.44 and 46,069.40

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Solution

The fourth proportional to 72,973.64, 100,636.44 and 46,069.40 is: 63,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,973.64 : 100,636.44 = 46,069.40 : x
  2. Step 2: Convert to fraction form
    72,973.64/100,636.44 = 46,069.40/x
  3. Step 3: Cross multiply
    72,973.64x = 100,636.44 × 46,069.40
  4. Step 4: Simplify right side
    72,973.64x = 4,636,260,408.94
  5. Step 5: Solve for x
    x = 4,636,260,408.94/72,973.64
  6. Step 6: Final answer
    x = 63,533.36

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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.