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Finding the Fourth Proportional to 255,140.89, 382,695.95 and 112,944.54

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Solution

The fourth proportional to 255,140.89, 382,695.95 and 112,944.54 is: 169,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,140.89 : 382,695.95 = 112,944.54 : x
  2. Step 2: Convert to fraction form
    255,140.89/382,695.95 = 112,944.54/x
  3. Step 3: Cross multiply
    255,140.89x = 382,695.95 × 112,944.54
  4. Step 4: Simplify right side
    255,140.89x = 43,223,418,294.41
  5. Step 5: Solve for x
    x = 43,223,418,294.41/255,140.89
  6. Step 6: Final answer
    x = 169,410.00

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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.