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Finding the Fourth Proportional to 63,128.40, 94,649.40 and 29,864.40

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Solution

The fourth proportional to 63,128.40, 94,649.40 and 29,864.40 is: 44,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.40 : 94,649.40 = 29,864.40 : x
  2. Step 2: Convert to fraction form
    63,128.40/94,649.40 = 29,864.40/x
  3. Step 3: Cross multiply
    63,128.40x = 94,649.40 × 29,864.40
  4. Step 4: Simplify right side
    63,128.40x = 2,826,647,541.36
  5. Step 5: Solve for x
    x = 2,826,647,541.36/63,128.40
  6. Step 6: Final answer
    x = 44,776.16

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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.