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Finding the Fourth Proportional to 142,776.60, 214,148.70 and 37,603.80

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Solution

The fourth proportional to 142,776.60, 214,148.70 and 37,603.80 is: 56,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,776.60 : 214,148.70 = 37,603.80 : x
  2. Step 2: Convert to fraction form
    142,776.60/214,148.70 = 37,603.80/x
  3. Step 3: Cross multiply
    142,776.60x = 214,148.70 × 37,603.80
  4. Step 4: Simplify right side
    142,776.60x = 8,052,804,885.06
  5. Step 5: Solve for x
    x = 8,052,804,885.06/142,776.60
  6. Step 6: Final answer
    x = 56,401.43

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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.