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Finding the Fourth Proportional to 201,695.40, 302,543.10 and 96,719.40

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Solution

The fourth proportional to 201,695.40, 302,543.10 and 96,719.40 is: 145,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,695.40 : 302,543.10 = 96,719.40 : x
  2. Step 2: Convert to fraction form
    201,695.40/302,543.10 = 96,719.40/x
  3. Step 3: Cross multiply
    201,695.40x = 302,543.10 × 96,719.40
  4. Step 4: Simplify right side
    201,695.40x = 29,261,787,106.14
  5. Step 5: Solve for x
    x = 29,261,787,106.14/201,695.40
  6. Step 6: Final answer
    x = 145,079.10

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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.