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Finding the Fourth Proportional to 123,907.80, 185,868.78 and 35,154.30

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Solution

The fourth proportional to 123,907.80, 185,868.78 and 35,154.30 is: 52,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,907.80 : 185,868.78 = 35,154.30 : x
  2. Step 2: Convert to fraction form
    123,907.80/185,868.78 = 35,154.30/x
  3. Step 3: Cross multiply
    123,907.80x = 185,868.78 × 35,154.30
  4. Step 4: Simplify right side
    123,907.80x = 6,534,086,852.75
  5. Step 5: Solve for x
    x = 6,534,086,852.75/123,907.80
  6. Step 6: Final answer
    x = 52,733.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.