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Finding the Fourth Proportional to 123,313.60, 185,164.80 and 70,825.60

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Solution

The fourth proportional to 123,313.60, 185,164.80 and 70,825.60 is: 106,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,313.60 : 185,164.80 = 70,825.60 : x
  2. Step 2: Convert to fraction form
    123,313.60/185,164.80 = 70,825.60/x
  3. Step 3: Cross multiply
    123,313.60x = 185,164.80 × 70,825.60
  4. Step 4: Simplify right side
    123,313.60x = 13,114,408,058.88
  5. Step 5: Solve for x
    x = 13,114,408,058.88/123,313.60
  6. Step 6: Final answer
    x = 106,350.05

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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.