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Finding the Fourth Proportional to 183,779.82, 253,671.21 and 107,319.60

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Solution

The fourth proportional to 183,779.82, 253,671.21 and 107,319.60 is: 148,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,779.82 : 253,671.21 = 107,319.60 : x
  2. Step 2: Convert to fraction form
    183,779.82/253,671.21 = 107,319.60/x
  3. Step 3: Cross multiply
    183,779.82x = 253,671.21 × 107,319.60
  4. Step 4: Simplify right side
    183,779.82x = 27,223,892,788.72
  5. Step 5: Solve for x
    x = 27,223,892,788.72/183,779.82
  6. Step 6: Final answer
    x = 148,133.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.