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Finding the Fourth Proportional to 78,750.94, 118,059.50 and 36,655.46

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Solution

The fourth proportional to 78,750.94, 118,059.50 and 36,655.46 is: 54,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.94 : 118,059.50 = 36,655.46 : x
  2. Step 2: Convert to fraction form
    78,750.94/118,059.50 = 36,655.46/x
  3. Step 3: Cross multiply
    78,750.94x = 118,059.50 × 36,655.46
  4. Step 4: Simplify right side
    78,750.94x = 4,327,525,279.87
  5. Step 5: Solve for x
    x = 4,327,525,279.87/78,750.94
  6. Step 6: Final answer
    x = 54,952.05

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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.