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Finding the Fourth Proportional to 92,788.38, 128,047.95 and 52,501.23

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Solution

The fourth proportional to 92,788.38, 128,047.95 and 52,501.23 is: 72,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,788.38 : 128,047.95 = 52,501.23 : x
  2. Step 2: Convert to fraction form
    92,788.38/128,047.95 = 52,501.23/x
  3. Step 3: Cross multiply
    92,788.38x = 128,047.95 × 52,501.23
  4. Step 4: Simplify right side
    92,788.38x = 6,722,674,873.98
  5. Step 5: Solve for x
    x = 6,722,674,873.98/92,788.38
  6. Step 6: Final answer
    x = 72,451.69

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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.