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Finding the Fourth Proportional to 268,755.14, 402,883.14 and 118,915.40

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Solution

The fourth proportional to 268,755.14, 402,883.14 and 118,915.40 is: 178,262.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,755.14 : 402,883.14 = 118,915.40 : x
  2. Step 2: Convert to fraction form
    268,755.14/402,883.14 = 118,915.40/x
  3. Step 3: Cross multiply
    268,755.14x = 402,883.14 × 118,915.40
  4. Step 4: Simplify right side
    268,755.14x = 47,909,009,746.36
  5. Step 5: Solve for x
    x = 47,909,009,746.36/268,755.14
  6. Step 6: Final answer
    x = 178,262.67

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1.5x scale

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.