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Finding the Fourth Proportional to 139,593.53, 209,307.07 and 94,670.12

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Solution

The fourth proportional to 139,593.53, 209,307.07 and 94,670.12 is: 141,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,593.53 : 209,307.07 = 94,670.12 : x
  2. Step 2: Convert to fraction form
    139,593.53/209,307.07 = 94,670.12/x
  3. Step 3: Cross multiply
    139,593.53x = 209,307.07 × 94,670.12
  4. Step 4: Simplify right side
    139,593.53x = 19,815,126,075.35
  5. Step 5: Solve for x
    x = 19,815,126,075.35/139,593.53
  6. Step 6: Final answer
    x = 141,948.74

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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.