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Finding the Fourth Proportional to 88,655.60, 133,026.60 and 67,588.40

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Solution

The fourth proportional to 88,655.60, 133,026.60 and 67,588.40 is: 101,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,655.60 : 133,026.60 = 67,588.40 : x
  2. Step 2: Convert to fraction form
    88,655.60/133,026.60 = 67,588.40/x
  3. Step 3: Cross multiply
    88,655.60x = 133,026.60 × 67,588.40
  4. Step 4: Simplify right side
    88,655.60x = 8,991,055,051.44
  5. Step 5: Solve for x
    x = 8,991,055,051.44/88,655.60
  6. Step 6: Final answer
    x = 101,415.53

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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.