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Finding the Fourth Proportional to 169,112.51, 253,697.92 and 56,803.53

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Solution

The fourth proportional to 169,112.51, 253,697.92 and 56,803.53 is: 85,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,112.51 : 253,697.92 = 56,803.53 : x
  2. Step 2: Convert to fraction form
    169,112.51/253,697.92 = 56,803.53/x
  3. Step 3: Cross multiply
    169,112.51x = 253,697.92 × 56,803.53
  4. Step 4: Simplify right side
    169,112.51x = 14,410,937,111.49
  5. Step 5: Solve for x
    x = 14,410,937,111.49/169,112.51
  6. Step 6: Final answer
    x = 85,215.09

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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.