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Finding the Fourth Proportional to 261,324.77, 391,950.24 and 83,808.71

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Solution

The fourth proportional to 261,324.77, 391,950.24 and 83,808.71 is: 125,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,324.77 : 391,950.24 = 83,808.71 : x
  2. Step 2: Convert to fraction form
    261,324.77/391,950.24 = 83,808.71/x
  3. Step 3: Cross multiply
    261,324.77x = 391,950.24 × 83,808.71
  4. Step 4: Simplify right side
    261,324.77x = 32,848,842,038.84
  5. Step 5: Solve for x
    x = 32,848,842,038.84/261,324.77
  6. Step 6: Final answer
    x = 125,701.22

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1.5x scale

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.