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Finding the Fourth Proportional to 129,099.45, 193,266.45 and 95,966.40

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Solution

The fourth proportional to 129,099.45, 193,266.45 and 95,966.40 is: 143,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,099.45 : 193,266.45 = 95,966.40 : x
  2. Step 2: Convert to fraction form
    129,099.45/193,266.45 = 95,966.40/x
  3. Step 3: Cross multiply
    129,099.45x = 193,266.45 × 95,966.40
  4. Step 4: Simplify right side
    129,099.45x = 18,547,085,447.28
  5. Step 5: Solve for x
    x = 18,547,085,447.28/129,099.45
  6. Step 6: Final answer
    x = 143,665.10

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1.5x scale

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.