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Finding the Fourth Proportional to 257,699.00, 355,624.27 and 144,520.76

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Solution

The fourth proportional to 257,699.00, 355,624.27 and 144,520.76 is: 199,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,699.00 : 355,624.27 = 144,520.76 : x
  2. Step 2: Convert to fraction form
    257,699.00/355,624.27 = 144,520.76/x
  3. Step 3: Cross multiply
    257,699.00x = 355,624.27 × 144,520.76
  4. Step 4: Simplify right side
    257,699.00x = 51,395,087,635.42
  5. Step 5: Solve for x
    x = 51,395,087,635.42/257,699.00
  6. Step 6: Final answer
    x = 199,438.45

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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.