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Finding the Fourth Proportional to 92,526.92, 127,689.57 and 56,216.01

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Solution

The fourth proportional to 92,526.92, 127,689.57 and 56,216.01 is: 77,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,526.92 : 127,689.57 = 56,216.01 : x
  2. Step 2: Convert to fraction form
    92,526.92/127,689.57 = 56,216.01/x
  3. Step 3: Cross multiply
    92,526.92x = 127,689.57 × 56,216.01
  4. Step 4: Simplify right side
    92,526.92x = 7,178,198,144.02
  5. Step 5: Solve for x
    x = 7,178,198,144.02/92,526.92
  6. Step 6: Final answer
    x = 77,579.57

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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.