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Finding the Fourth Proportional to 257,893.82, 386,337.51 and 168,877.45

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Solution

The fourth proportional to 257,893.82, 386,337.51 and 168,877.45 is: 252,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,893.82 : 386,337.51 = 168,877.45 : x
  2. Step 2: Convert to fraction form
    257,893.82/386,337.51 = 168,877.45/x
  3. Step 3: Cross multiply
    257,893.82x = 386,337.51 × 168,877.45
  4. Step 4: Simplify right side
    257,893.82x = 65,243,692,683.76
  5. Step 5: Solve for x
    x = 65,243,692,683.76/257,893.82
  6. Step 6: Final answer
    x = 252,986.65

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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.