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Finding the Fourth Proportional to 450,518.64, 675,700.14 and 134,890.80

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Solution

The fourth proportional to 450,518.64, 675,700.14 and 134,890.80 is: 202,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,518.64 : 675,700.14 = 134,890.80 : x
  2. Step 2: Convert to fraction form
    450,518.64/675,700.14 = 134,890.80/x
  3. Step 3: Cross multiply
    450,518.64x = 675,700.14 × 134,890.80
  4. Step 4: Simplify right side
    450,518.64x = 91,145,732,444.71
  5. Step 5: Solve for x
    x = 91,145,732,444.71/450,518.64
  6. Step 6: Final answer
    x = 202,312.90

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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.