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Finding the Fourth Proportional to 303,901.78, 455,858.54 and 93,539.50

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Solution

The fourth proportional to 303,901.78, 455,858.54 and 93,539.50 is: 140,311.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,901.78 : 455,858.54 = 93,539.50 : x
  2. Step 2: Convert to fraction form
    303,901.78/455,858.54 = 93,539.50/x
  3. Step 3: Cross multiply
    303,901.78x = 455,858.54 × 93,539.50
  4. Step 4: Simplify right side
    303,901.78x = 42,640,779,434.63
  5. Step 5: Solve for x
    x = 42,640,779,434.63/303,901.78
  6. Step 6: Final answer
    x = 140,311.06

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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.