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Finding the Fourth Proportional to 52,688.65, 79,088.67 and 51,498.79

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Solution

The fourth proportional to 52,688.65, 79,088.67 and 51,498.79 is: 77,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,688.65 : 79,088.67 = 51,498.79 : x
  2. Step 2: Convert to fraction form
    52,688.65/79,088.67 = 51,498.79/x
  3. Step 3: Cross multiply
    52,688.65x = 79,088.67 × 51,498.79
  4. Step 4: Simplify right side
    52,688.65x = 4,072,970,412.27
  5. Step 5: Solve for x
    x = 4,072,970,412.27/52,688.65
  6. Step 6: Final answer
    x = 77,302.61

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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.