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Finding the Fourth Proportional to 115,095.68, 172,709.39 and 62,509.76

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Solution

The fourth proportional to 115,095.68, 172,709.39 and 62,509.76 is: 93,800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,095.68 : 172,709.39 = 62,509.76 : x
  2. Step 2: Convert to fraction form
    115,095.68/172,709.39 = 62,509.76/x
  3. Step 3: Cross multiply
    115,095.68x = 172,709.39 × 62,509.76
  4. Step 4: Simplify right side
    115,095.68x = 10,796,021,811.37
  5. Step 5: Solve for x
    x = 10,796,021,811.37/115,095.68
  6. Step 6: Final answer
    x = 93,800.41

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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.