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Finding the Fourth Proportional to 143,406.40, 214,915.20 and 95,886.40

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Solution

The fourth proportional to 143,406.40, 214,915.20 and 95,886.40 is: 143,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,406.40 : 214,915.20 = 95,886.40 : x
  2. Step 2: Convert to fraction form
    143,406.40/214,915.20 = 95,886.40/x
  3. Step 3: Cross multiply
    143,406.40x = 214,915.20 × 95,886.40
  4. Step 4: Simplify right side
    143,406.40x = 20,607,444,833.28
  5. Step 5: Solve for x
    x = 20,607,444,833.28/143,406.40
  6. Step 6: Final answer
    x = 143,699.62

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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.