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Finding the Fourth Proportional to 102,792.51, 141,859.08 and 62,499.60

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Solution

The fourth proportional to 102,792.51, 141,859.08 and 62,499.60 is: 86,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,792.51 : 141,859.08 = 62,499.60 : x
  2. Step 2: Convert to fraction form
    102,792.51/141,859.08 = 62,499.60/x
  3. Step 3: Cross multiply
    102,792.51x = 141,859.08 × 62,499.60
  4. Step 4: Simplify right side
    102,792.51x = 8,866,135,756.37
  5. Step 5: Solve for x
    x = 8,866,135,756.37/102,792.51
  6. Step 6: Final answer
    x = 86,252.74

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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.