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Finding the Fourth Proportional to 213,054.60, 319,506.30 and 94,513.80

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Solution

The fourth proportional to 213,054.60, 319,506.30 and 94,513.80 is: 141,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,054.60 : 319,506.30 = 94,513.80 : x
  2. Step 2: Convert to fraction form
    213,054.60/319,506.30 = 94,513.80/x
  3. Step 3: Cross multiply
    213,054.60x = 319,506.30 × 94,513.80
  4. Step 4: Simplify right side
    213,054.60x = 30,197,754,536.94
  5. Step 5: Solve for x
    x = 30,197,754,536.94/213,054.60
  6. Step 6: Final answer
    x = 141,737.16

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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.