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Finding the Fourth Proportional to 157,074.40, 235,352.40 and 133,746.40

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Solution

The fourth proportional to 157,074.40, 235,352.40 and 133,746.40 is: 200,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,074.40 : 235,352.40 = 133,746.40 : x
  2. Step 2: Convert to fraction form
    157,074.40/235,352.40 = 133,746.40/x
  3. Step 3: Cross multiply
    157,074.40x = 235,352.40 × 133,746.40
  4. Step 4: Simplify right side
    157,074.40x = 31,477,536,231.36
  5. Step 5: Solve for x
    x = 31,477,536,231.36/157,074.40
  6. Step 6: Final answer
    x = 200,398.90

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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.