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Finding the Fourth Proportional to 358,512.60, 537,768.90 and 148,301.40

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Solution

The fourth proportional to 358,512.60, 537,768.90 and 148,301.40 is: 222,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,512.60 : 537,768.90 = 148,301.40 : x
  2. Step 2: Convert to fraction form
    358,512.60/537,768.90 = 148,301.40/x
  3. Step 3: Cross multiply
    358,512.60x = 537,768.90 × 148,301.40
  4. Step 4: Simplify right side
    358,512.60x = 79,751,880,746.46
  5. Step 5: Solve for x
    x = 79,751,880,746.46/358,512.60
  6. Step 6: Final answer
    x = 222,452.10

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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.