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Finding the Fourth Proportional to 124,360.65, 171,568.98 and 76,530.96

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Solution

The fourth proportional to 124,360.65, 171,568.98 and 76,530.96 is: 105,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,360.65 : 171,568.98 = 76,530.96 : x
  2. Step 2: Convert to fraction form
    124,360.65/171,568.98 = 76,530.96/x
  3. Step 3: Cross multiply
    124,360.65x = 171,568.98 × 76,530.96
  4. Step 4: Simplify right side
    124,360.65x = 13,130,338,745.62
  5. Step 5: Solve for x
    x = 13,130,338,745.62/124,360.65
  6. Step 6: Final answer
    x = 105,582.74

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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.