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Finding the Fourth Proportional to 70,804.80, 97,692.96 and 45,624

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Solution

The fourth proportional to 70,804.80, 97,692.96 and 45,624 is: 62,949.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,804.80 : 97,692.96 = 45,624 : x
  2. Step 2: Convert to fraction form
    70,804.80/97,692.96 = 45,624/x
  3. Step 3: Cross multiply
    70,804.80x = 97,692.96 × 45,624
  4. Step 4: Simplify right side
    70,804.80x = 4,457,143,607.04
  5. Step 5: Solve for x
    x = 4,457,143,607.04/70,804.80
  6. Step 6: Final answer
    x = 62,949.74

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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.