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Finding the Fourth Proportional to 137,412.76, 205,850.70 and 94,710.60

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Solution

The fourth proportional to 137,412.76, 205,850.70 and 94,710.60 is: 141,880.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,412.76 : 205,850.70 = 94,710.60 : x
  2. Step 2: Convert to fraction form
    137,412.76/205,850.70 = 94,710.60/x
  3. Step 3: Cross multiply
    137,412.76x = 205,850.70 × 94,710.60
  4. Step 4: Simplify right side
    137,412.76x = 19,496,243,307.42
  5. Step 5: Solve for x
    x = 19,496,243,307.42/137,412.76
  6. Step 6: Final answer
    x = 141,880.88

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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.