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Finding the Fourth Proportional to 358,577.21, 537,803.48 and 133,939.58

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Solution

The fourth proportional to 358,577.21, 537,803.48 and 133,939.58 is: 200,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,577.21 : 537,803.48 = 133,939.58 : x
  2. Step 2: Convert to fraction form
    358,577.21/537,803.48 = 133,939.58/x
  3. Step 3: Cross multiply
    358,577.21x = 537,803.48 × 133,939.58
  4. Step 4: Simplify right side
    358,577.21x = 72,033,169,879.57
  5. Step 5: Solve for x
    x = 72,033,169,879.57/358,577.21
  6. Step 6: Final answer
    x = 200,886.08

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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.