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Finding the Fourth Proportional to 236,463.60, 354,698.52 and 78,692.08

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Solution

The fourth proportional to 236,463.60, 354,698.52 and 78,692.08 is: 118,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,463.60 : 354,698.52 = 78,692.08 : x
  2. Step 2: Convert to fraction form
    236,463.60/354,698.52 = 78,692.08/x
  3. Step 3: Cross multiply
    236,463.60x = 354,698.52 × 78,692.08
  4. Step 4: Simplify right side
    236,463.60x = 27,911,964,311.72
  5. Step 5: Solve for x
    x = 27,911,964,311.72/236,463.60
  6. Step 6: Final answer
    x = 118,039.16

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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.