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Finding the Fourth Proportional to 264,903.72, 365,417.50 and 157,508.40

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Solution

The fourth proportional to 264,903.72, 365,417.50 and 157,508.40 is: 217,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,903.72 : 365,417.50 = 157,508.40 : x
  2. Step 2: Convert to fraction form
    264,903.72/365,417.50 = 157,508.40/x
  3. Step 3: Cross multiply
    264,903.72x = 365,417.50 × 157,508.40
  4. Step 4: Simplify right side
    264,903.72x = 57,556,325,757
  5. Step 5: Solve for x
    x = 57,556,325,757/264,903.72
  6. Step 6: Final answer
    x = 217,272.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.