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Finding the Fourth Proportional to 55,435.60, 83,205.60 and 29,159.20

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Solution

The fourth proportional to 55,435.60, 83,205.60 and 29,159.20 is: 43,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.60 : 83,205.60 = 29,159.20 : x
  2. Step 2: Convert to fraction form
    55,435.60/83,205.60 = 29,159.20/x
  3. Step 3: Cross multiply
    55,435.60x = 83,205.60 × 29,159.20
  4. Step 4: Simplify right side
    55,435.60x = 2,426,208,731.52
  5. Step 5: Solve for x
    x = 2,426,208,731.52/55,435.60
  6. Step 6: Final answer
    x = 43,766.26

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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.