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Finding the Fourth Proportional to 504,506.60, 756,738 and 125,419.40

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Solution

The fourth proportional to 504,506.60, 756,738 and 125,419.40 is: 188,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,506.60 : 756,738 = 125,419.40 : x
  2. Step 2: Convert to fraction form
    504,506.60/756,738 = 125,419.40/x
  3. Step 3: Cross multiply
    504,506.60x = 756,738 × 125,419.40
  4. Step 4: Simplify right side
    504,506.60x = 94,909,625,917.20
  5. Step 5: Solve for x
    x = 94,909,625,917.20/504,506.60
  6. Step 6: Final answer
    x = 188,123.66

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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.