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Finding the Fourth Proportional to 93,334.80, 139,807.80 and 77,782.80

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Solution

The fourth proportional to 93,334.80, 139,807.80 and 77,782.80 is: 116,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,334.80 : 139,807.80 = 77,782.80 : x
  2. Step 2: Convert to fraction form
    93,334.80/139,807.80 = 77,782.80/x
  3. Step 3: Cross multiply
    93,334.80x = 139,807.80 × 77,782.80
  4. Step 4: Simplify right side
    93,334.80x = 10,874,642,145.84
  5. Step 5: Solve for x
    x = 10,874,642,145.84/93,334.80
  6. Step 6: Final answer
    x = 116,512.19

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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.