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Finding the Fourth Proportional to 123,907.66, 171,001.04 and 70,193.12

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Solution

The fourth proportional to 123,907.66, 171,001.04 and 70,193.12 is: 96,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,907.66 : 171,001.04 = 70,193.12 : x
  2. Step 2: Convert to fraction form
    123,907.66/171,001.04 = 70,193.12/x
  3. Step 3: Cross multiply
    123,907.66x = 171,001.04 × 70,193.12
  4. Step 4: Simplify right side
    123,907.66x = 12,003,096,520.84
  5. Step 5: Solve for x
    x = 12,003,096,520.84/123,907.66
  6. Step 6: Final answer
    x = 96,871.30

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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.