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Finding the Fourth Proportional to 200,660.04, 276,916.12 and 113,438.20

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Solution

The fourth proportional to 200,660.04, 276,916.12 and 113,438.20 is: 156,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,660.04 : 276,916.12 = 113,438.20 : x
  2. Step 2: Convert to fraction form
    200,660.04/276,916.12 = 113,438.20/x
  3. Step 3: Cross multiply
    200,660.04x = 276,916.12 × 113,438.20
  4. Step 4: Simplify right side
    200,660.04x = 31,412,866,203.78
  5. Step 5: Solve for x
    x = 31,412,866,203.78/200,660.04
  6. Step 6: Final answer
    x = 156,547.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.