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Finding the Fourth Proportional to 235,427.60, 353,314.20 and 156,515.60

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Solution

The fourth proportional to 235,427.60, 353,314.20 and 156,515.60 is: 234,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,427.60 : 353,314.20 = 156,515.60 : x
  2. Step 2: Convert to fraction form
    235,427.60/353,314.20 = 156,515.60/x
  3. Step 3: Cross multiply
    235,427.60x = 353,314.20 × 156,515.60
  4. Step 4: Simplify right side
    235,427.60x = 55,299,184,001.52
  5. Step 5: Solve for x
    x = 55,299,184,001.52/235,427.60
  6. Step 6: Final answer
    x = 234,888.28

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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.