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Finding the Fourth Proportional to 90,201.76, 124,503.45 and 52,483.30

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Solution

The fourth proportional to 90,201.76, 124,503.45 and 52,483.30 is: 72,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,201.76 : 124,503.45 = 52,483.30 : x
  2. Step 2: Convert to fraction form
    90,201.76/124,503.45 = 52,483.30/x
  3. Step 3: Cross multiply
    90,201.76x = 124,503.45 × 52,483.30
  4. Step 4: Simplify right side
    90,201.76x = 6,534,351,917.39
  5. Step 5: Solve for x
    x = 6,534,351,917.39/90,201.76
  6. Step 6: Final answer
    x = 72,441.51

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1.5x scale

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.