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Finding the Fourth Proportional to 157,214.40, 235,821.60 and 141,662.40

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Solution

The fourth proportional to 157,214.40, 235,821.60 and 141,662.40 is: 212,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,214.40 : 235,821.60 = 141,662.40 : x
  2. Step 2: Convert to fraction form
    157,214.40/235,821.60 = 141,662.40/x
  3. Step 3: Cross multiply
    157,214.40x = 235,821.60 × 141,662.40
  4. Step 4: Simplify right side
    157,214.40x = 33,407,053,827.84
  5. Step 5: Solve for x
    x = 33,407,053,827.84/157,214.40
  6. Step 6: Final answer
    x = 212,493.60

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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.