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Finding the Fourth Proportional to 291,806.70, 437,710.05 and 125,594.70

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Solution

The fourth proportional to 291,806.70, 437,710.05 and 125,594.70 is: 188,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,806.70 : 437,710.05 = 125,594.70 : x
  2. Step 2: Convert to fraction form
    291,806.70/437,710.05 = 125,594.70/x
  3. Step 3: Cross multiply
    291,806.70x = 437,710.05 × 125,594.70
  4. Step 4: Simplify right side
    291,806.70x = 54,974,062,416.74
  5. Step 5: Solve for x
    x = 54,974,062,416.74/291,806.70
  6. Step 6: Final answer
    x = 188,392.05

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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.