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Finding the Fourth Proportional to 316,775.95, 437,149.51 and 173,544.91

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Solution

The fourth proportional to 316,775.95, 437,149.51 and 173,544.91 is: 239,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,775.95 : 437,149.51 = 173,544.91 : x
  2. Step 2: Convert to fraction form
    316,775.95/437,149.51 = 173,544.91/x
  3. Step 3: Cross multiply
    316,775.95x = 437,149.51 × 173,544.91
  4. Step 4: Simplify right side
    316,775.95x = 75,865,072,369.49
  5. Step 5: Solve for x
    x = 75,865,072,369.49/316,775.95
  6. Step 6: Final answer
    x = 239,491.26

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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.