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Finding the Fourth Proportional to 117,762.66, 162,458.87 and 69,988.86

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Solution

The fourth proportional to 117,762.66, 162,458.87 and 69,988.86 is: 96,552.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,762.66 : 162,458.87 = 69,988.86 : x
  2. Step 2: Convert to fraction form
    117,762.66/162,458.87 = 69,988.86/x
  3. Step 3: Cross multiply
    117,762.66x = 162,458.87 × 69,988.86
  4. Step 4: Simplify right side
    117,762.66x = 11,370,310,758.24
  5. Step 5: Solve for x
    x = 11,370,310,758.24/117,762.66
  6. Step 6: Final answer
    x = 96,552.77

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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.