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Finding the Fourth Proportional to 201,621.40, 302,432.10 and 96,645.40

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Solution

The fourth proportional to 201,621.40, 302,432.10 and 96,645.40 is: 144,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,621.40 : 302,432.10 = 96,645.40 : x
  2. Step 2: Convert to fraction form
    201,621.40/302,432.10 = 96,645.40/x
  3. Step 3: Cross multiply
    201,621.40x = 302,432.10 × 96,645.40
  4. Step 4: Simplify right side
    201,621.40x = 29,228,671,277.34
  5. Step 5: Solve for x
    x = 29,228,671,277.34/201,621.40
  6. Step 6: Final answer
    x = 144,968.10

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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.