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Finding the Fourth Proportional to 152,616.60, 228,762.90 and 73,679.40

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Solution

The fourth proportional to 152,616.60, 228,762.90 and 73,679.40 is: 110,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,616.60 : 228,762.90 = 73,679.40 : x
  2. Step 2: Convert to fraction form
    152,616.60/228,762.90 = 73,679.40/x
  3. Step 3: Cross multiply
    152,616.60x = 228,762.90 × 73,679.40
  4. Step 4: Simplify right side
    152,616.60x = 16,855,113,214.26
  5. Step 5: Solve for x
    x = 16,855,113,214.26/152,616.60
  6. Step 6: Final answer
    x = 110,440.89

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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.