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Finding the Fourth Proportional to 357,931.64, 537,286.52 and 144,846.28

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Solution

The fourth proportional to 357,931.64, 537,286.52 and 144,846.28 is: 217,426.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,931.64 : 537,286.52 = 144,846.28 : x
  2. Step 2: Convert to fraction form
    357,931.64/537,286.52 = 144,846.28/x
  3. Step 3: Cross multiply
    357,931.64x = 537,286.52 × 144,846.28
  4. Step 4: Simplify right side
    357,931.64x = 77,823,953,716.15
  5. Step 5: Solve for x
    x = 77,823,953,716.15/357,931.64
  6. Step 6: Final answer
    x = 217,426.86

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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.