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Finding the Fourth Proportional to 122,372.01, 168,968.94 and 79,371.93

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Solution

The fourth proportional to 122,372.01, 168,968.94 and 79,371.93 is: 109,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,372.01 : 168,968.94 = 79,371.93 : x
  2. Step 2: Convert to fraction form
    122,372.01/168,968.94 = 79,371.93/x
  3. Step 3: Cross multiply
    122,372.01x = 168,968.94 × 79,371.93
  4. Step 4: Simplify right side
    122,372.01x = 13,411,390,877.85
  5. Step 5: Solve for x
    x = 13,411,390,877.85/122,372.01
  6. Step 6: Final answer
    x = 109,595.25

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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.