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Finding the Fourth Proportional to 108,453.60, 162,583.20 and 96,643.80

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Solution

The fourth proportional to 108,453.60, 162,583.20 and 96,643.80 is: 144,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,453.60 : 162,583.20 = 96,643.80 : x
  2. Step 2: Convert to fraction form
    108,453.60/162,583.20 = 96,643.80/x
  3. Step 3: Cross multiply
    108,453.60x = 162,583.20 × 96,643.80
  4. Step 4: Simplify right side
    108,453.60x = 15,712,658,264.16
  5. Step 5: Solve for x
    x = 15,712,658,264.16/108,453.60
  6. Step 6: Final answer
    x = 144,879.08

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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.