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Finding the Fourth Proportional to 112,980.74, 169,264.54 and 52,898.98

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Solution

The fourth proportional to 112,980.74, 169,264.54 and 52,898.98 is: 79,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,980.74 : 169,264.54 = 52,898.98 : x
  2. Step 2: Convert to fraction form
    112,980.74/169,264.54 = 52,898.98/x
  3. Step 3: Cross multiply
    112,980.74x = 169,264.54 × 52,898.98
  4. Step 4: Simplify right side
    112,980.74x = 8,953,921,516.17
  5. Step 5: Solve for x
    x = 8,953,921,516.17/112,980.74
  6. Step 6: Final answer
    x = 79,251.75

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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.