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Finding the Fourth Proportional to 286,776.54, 430,243.36 and 87,103.44

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Solution

The fourth proportional to 286,776.54, 430,243.36 and 87,103.44 is: 130,679.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,776.54 : 430,243.36 = 87,103.44 : x
  2. Step 2: Convert to fraction form
    286,776.54/430,243.36 = 87,103.44/x
  3. Step 3: Cross multiply
    286,776.54x = 430,243.36 × 87,103.44
  4. Step 4: Simplify right side
    286,776.54x = 37,475,676,693.16
  5. Step 5: Solve for x
    x = 37,475,676,693.16/286,776.54
  6. Step 6: Final answer
    x = 130,679.02

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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.