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Finding the Fourth Proportional to 76,100.40, 114,150.60 and 34,547.40

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Solution

The fourth proportional to 76,100.40, 114,150.60 and 34,547.40 is: 51,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,100.40 : 114,150.60 = 34,547.40 : x
  2. Step 2: Convert to fraction form
    76,100.40/114,150.60 = 34,547.40/x
  3. Step 3: Cross multiply
    76,100.40x = 114,150.60 × 34,547.40
  4. Step 4: Simplify right side
    76,100.40x = 3,943,606,438.44
  5. Step 5: Solve for x
    x = 3,943,606,438.44/76,100.40
  6. Step 6: Final answer
    x = 51,821.10

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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.