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Finding the Fourth Proportional to 286,774.53, 430,240.37 and 87,101.43

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Solution

The fourth proportional to 286,774.53, 430,240.37 and 87,101.43 is: 130,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,774.53 : 430,240.37 = 87,101.43 : x
  2. Step 2: Convert to fraction form
    286,774.53/430,240.37 = 87,101.43/x
  3. Step 3: Cross multiply
    286,774.53x = 430,240.37 × 87,101.43
  4. Step 4: Simplify right side
    286,774.53x = 37,474,551,035.22
  5. Step 5: Solve for x
    x = 37,474,551,035.22/286,774.53
  6. Step 6: Final answer
    x = 130,676.01

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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.