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Finding the Fourth Proportional to 370,814.21, 556,423.16 and 157,548.77

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Solution

The fourth proportional to 370,814.21, 556,423.16 and 157,548.77 is: 236,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,814.21 : 556,423.16 = 157,548.77 : x
  2. Step 2: Convert to fraction form
    370,814.21/556,423.16 = 157,548.77/x
  3. Step 3: Cross multiply
    370,814.21x = 556,423.16 × 157,548.77
  4. Step 4: Simplify right side
    370,814.21x = 87,663,783,669.77
  5. Step 5: Solve for x
    x = 87,663,783,669.77/370,814.21
  6. Step 6: Final answer
    x = 236,408.91

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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.