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Finding the Fourth Proportional to 92,894.52, 128,202.42 and 52,615.40

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Solution

The fourth proportional to 92,894.52, 128,202.42 and 52,615.40 is: 72,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,894.52 : 128,202.42 = 52,615.40 : x
  2. Step 2: Convert to fraction form
    92,894.52/128,202.42 = 52,615.40/x
  3. Step 3: Cross multiply
    92,894.52x = 128,202.42 × 52,615.40
  4. Step 4: Simplify right side
    92,894.52x = 6,745,421,609.27
  5. Step 5: Solve for x
    x = 6,745,421,609.27/92,894.52
  6. Step 6: Final answer
    x = 72,613.77

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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.