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Finding the Fourth Proportional to 132,810.58, 199,274.57 and 69,615.60

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Solution

The fourth proportional to 132,810.58, 199,274.57 and 69,615.60 is: 104,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,810.58 : 199,274.57 = 69,615.60 : x
  2. Step 2: Convert to fraction form
    132,810.58/199,274.57 = 69,615.60/x
  3. Step 3: Cross multiply
    132,810.58x = 199,274.57 × 69,615.60
  4. Step 4: Simplify right side
    132,810.58x = 13,872,617,920.99
  5. Step 5: Solve for x
    x = 13,872,617,920.99/132,810.58
  6. Step 6: Final answer
    x = 104,454.16

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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.