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Finding the Fourth Proportional to 436,444.40, 654,666.60 and 120,901.16

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Solution

The fourth proportional to 436,444.40, 654,666.60 and 120,901.16 is: 181,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,444.40 : 654,666.60 = 120,901.16 : x
  2. Step 2: Convert to fraction form
    436,444.40/654,666.60 = 120,901.16/x
  3. Step 3: Cross multiply
    436,444.40x = 654,666.60 × 120,901.16
  4. Step 4: Simplify right side
    436,444.40x = 79,149,951,353.26
  5. Step 5: Solve for x
    x = 79,149,951,353.26/436,444.40
  6. Step 6: Final answer
    x = 181,351.74

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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.