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Finding the Fourth Proportional to 97,395.65, 134,367.81 and 56,552.80

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Solution

The fourth proportional to 97,395.65, 134,367.81 and 56,552.80 is: 78,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,395.65 : 134,367.81 = 56,552.80 : x
  2. Step 2: Convert to fraction form
    97,395.65/134,367.81 = 56,552.80/x
  3. Step 3: Cross multiply
    97,395.65x = 134,367.81 × 56,552.80
  4. Step 4: Simplify right side
    97,395.65x = 7,598,875,885.37
  5. Step 5: Solve for x
    x = 7,598,875,885.37/97,395.65
  6. Step 6: Final answer
    x = 78,020.69

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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.