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Finding the Fourth Proportional to 380,467.61, 570,708.69 and 124,300.89

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Solution

The fourth proportional to 380,467.61, 570,708.69 and 124,300.89 is: 186,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,467.61 : 570,708.69 = 124,300.89 : x
  2. Step 2: Convert to fraction form
    380,467.61/570,708.69 = 124,300.89/x
  3. Step 3: Cross multiply
    380,467.61x = 570,708.69 × 124,300.89
  4. Step 4: Simplify right side
    380,467.61x = 70,939,595,244.19
  5. Step 5: Solve for x
    x = 70,939,595,244.19/380,467.61
  6. Step 6: Final answer
    x = 186,453.70

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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.