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Finding the Fourth Proportional to 124,360.62, 171,568.94 and 76,530.93

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Solution

The fourth proportional to 124,360.62, 171,568.94 and 76,530.93 is: 105,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,360.62 : 171,568.94 = 76,530.93 : x
  2. Step 2: Convert to fraction form
    124,360.62/171,568.94 = 76,530.93/x
  3. Step 3: Cross multiply
    124,360.62x = 171,568.94 × 76,530.93
  4. Step 4: Simplify right side
    124,360.62x = 13,130,329,511.28
  5. Step 5: Solve for x
    x = 13,130,329,511.28/124,360.62
  6. Step 6: Final answer
    x = 105,582.70

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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.