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Finding the Fourth Proportional to 136,962.88, 205,477.12 and 43,468.63

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Solution

The fourth proportional to 136,962.88, 205,477.12 and 43,468.63 is: 65,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,962.88 : 205,477.12 = 43,468.63 : x
  2. Step 2: Convert to fraction form
    136,962.88/205,477.12 = 43,468.63/x
  3. Step 3: Cross multiply
    136,962.88x = 205,477.12 × 43,468.63
  4. Step 4: Simplify right side
    136,962.88x = 8,931,808,902.75
  5. Step 5: Solve for x
    x = 8,931,808,902.75/136,962.88
  6. Step 6: Final answer
    x = 65,213.35

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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.