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Finding the Fourth Proportional to 201,281.80, 302,117.10 and 122,549.80

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Solution

The fourth proportional to 201,281.80, 302,117.10 and 122,549.80 is: 183,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,281.80 : 302,117.10 = 122,549.80 : x
  2. Step 2: Convert to fraction form
    201,281.80/302,117.10 = 122,549.80/x
  3. Step 3: Cross multiply
    201,281.80x = 302,117.10 × 122,549.80
  4. Step 4: Simplify right side
    201,281.80x = 37,024,390,181.58
  5. Step 5: Solve for x
    x = 37,024,390,181.58/201,281.80
  6. Step 6: Final answer
    x = 183,943.06

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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.