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Finding the Fourth Proportional to 114,503.64, 171,483.95 and 90,734.77

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Solution

The fourth proportional to 114,503.64, 171,483.95 and 90,734.77 is: 135,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,503.64 : 171,483.95 = 90,734.77 : x
  2. Step 2: Convert to fraction form
    114,503.64/171,483.95 = 90,734.77/x
  3. Step 3: Cross multiply
    114,503.64x = 171,483.95 × 90,734.77
  4. Step 4: Simplify right side
    114,503.64x = 15,559,556,238.54
  5. Step 5: Solve for x
    x = 15,559,556,238.54/114,503.64
  6. Step 6: Final answer
    x = 135,887.00

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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.