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Finding the Fourth Proportional to 98,792.16, 136,346.16 and 56,340.96

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Solution

The fourth proportional to 98,792.16, 136,346.16 and 56,340.96 is: 77,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,792.16 : 136,346.16 = 56,340.96 : x
  2. Step 2: Convert to fraction form
    98,792.16/136,346.16 = 56,340.96/x
  3. Step 3: Cross multiply
    98,792.16x = 136,346.16 × 56,340.96
  4. Step 4: Simplify right side
    98,792.16x = 7,681,873,546.71
  5. Step 5: Solve for x
    x = 7,681,873,546.71/98,792.16
  6. Step 6: Final answer
    x = 77,757.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.