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Finding the Fourth Proportional to 183,764.40, 253,634.40 and 112,129.08

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Solution

The fourth proportional to 183,764.40, 253,634.40 and 112,129.08 is: 154,762.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,764.40 : 253,634.40 = 112,129.08 : x
  2. Step 2: Convert to fraction form
    183,764.40/253,634.40 = 112,129.08/x
  3. Step 3: Cross multiply
    183,764.40x = 253,634.40 × 112,129.08
  4. Step 4: Simplify right side
    183,764.40x = 28,439,791,928.35
  5. Step 5: Solve for x
    x = 28,439,791,928.35/183,764.40
  6. Step 6: Final answer
    x = 154,762.25

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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.