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Finding the Fourth Proportional to 117,590.60, 162,212.80 and 74,494.04

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Solution

The fourth proportional to 117,590.60, 162,212.80 and 74,494.04 is: 102,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.60 : 162,212.80 = 74,494.04 : x
  2. Step 2: Convert to fraction form
    117,590.60/162,212.80 = 74,494.04/x
  3. Step 3: Cross multiply
    117,590.60x = 162,212.80 × 74,494.04
  4. Step 4: Simplify right side
    117,590.60x = 12,083,886,811.71
  5. Step 5: Solve for x
    x = 12,083,886,811.71/117,590.60
  6. Step 6: Final answer
    x = 102,762.35

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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.