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Finding the Fourth Proportional to 135,036.24, 186,350.02 and 75,420.24

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Solution

The fourth proportional to 135,036.24, 186,350.02 and 75,420.24 is: 104,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,036.24 : 186,350.02 = 75,420.24 : x
  2. Step 2: Convert to fraction form
    135,036.24/186,350.02 = 75,420.24/x
  3. Step 3: Cross multiply
    135,036.24x = 186,350.02 × 75,420.24
  4. Step 4: Simplify right side
    135,036.24x = 14,054,563,232.40
  5. Step 5: Solve for x
    x = 14,054,563,232.40/135,036.24
  6. Step 6: Final answer
    x = 104,079.94

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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.