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Finding the Fourth Proportional to 121,651.23, 167,877.01 and 70,692.76

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Solution

The fourth proportional to 121,651.23, 167,877.01 and 70,692.76 is: 97,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,651.23 : 167,877.01 = 70,692.76 : x
  2. Step 2: Convert to fraction form
    121,651.23/167,877.01 = 70,692.76/x
  3. Step 3: Cross multiply
    121,651.23x = 167,877.01 × 70,692.76
  4. Step 4: Simplify right side
    121,651.23x = 11,867,689,177.45
  5. Step 5: Solve for x
    x = 11,867,689,177.45/121,651.23
  6. Step 6: Final answer
    x = 97,555.03

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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.