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Finding the Fourth Proportional to 209,570.53, 314,179.46 and 91,152.68

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Solution

The fourth proportional to 209,570.53, 314,179.46 and 91,152.68 is: 136,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,570.53 : 314,179.46 = 91,152.68 : x
  2. Step 2: Convert to fraction form
    209,570.53/314,179.46 = 91,152.68/x
  3. Step 3: Cross multiply
    209,570.53x = 314,179.46 × 91,152.68
  4. Step 4: Simplify right side
    209,570.53x = 28,638,299,779.95
  5. Step 5: Solve for x
    x = 28,638,299,779.95/209,570.53
  6. Step 6: Final answer
    x = 136,652.32

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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.