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Finding the Fourth Proportional to 101,097.65, 139,509.61 and 60,803.66

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Solution

The fourth proportional to 101,097.65, 139,509.61 and 60,803.66 is: 83,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,097.65 : 139,509.61 = 60,803.66 : x
  2. Step 2: Convert to fraction form
    101,097.65/139,509.61 = 60,803.66/x
  3. Step 3: Cross multiply
    101,097.65x = 139,509.61 × 60,803.66
  4. Step 4: Simplify right side
    101,097.65x = 8,482,695,089.94
  5. Step 5: Solve for x
    x = 8,482,695,089.94/101,097.65
  6. Step 6: Final answer
    x = 83,905.96

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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.