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Finding the Fourth Proportional to 88,665.58, 122,358.45 and 56,834.46

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Solution

The fourth proportional to 88,665.58, 122,358.45 and 56,834.46 is: 78,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,665.58 : 122,358.45 = 56,834.46 : x
  2. Step 2: Convert to fraction form
    88,665.58/122,358.45 = 56,834.46/x
  3. Step 3: Cross multiply
    88,665.58x = 122,358.45 × 56,834.46
  4. Step 4: Simplify right side
    88,665.58x = 6,954,176,432.19
  5. Step 5: Solve for x
    x = 6,954,176,432.19/88,665.58
  6. Step 6: Final answer
    x = 78,431.52

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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.