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Finding the Fourth Proportional to 209,393.49, 314,194.02 and 83,031.02

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Solution

The fourth proportional to 209,393.49, 314,194.02 and 83,031.02 is: 124,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,393.49 : 314,194.02 = 83,031.02 : x
  2. Step 2: Convert to fraction form
    209,393.49/314,194.02 = 83,031.02/x
  3. Step 3: Cross multiply
    209,393.49x = 314,194.02 × 83,031.02
  4. Step 4: Simplify right side
    209,393.49x = 26,087,849,958.50
  5. Step 5: Solve for x
    x = 26,087,849,958.50/209,393.49
  6. Step 6: Final answer
    x = 124,587.68

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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.