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Finding the Fourth Proportional to 93,206.32, 139,808.80 and 55,776.80

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Solution

The fourth proportional to 93,206.32, 139,808.80 and 55,776.80 is: 83,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,206.32 : 139,808.80 = 55,776.80 : x
  2. Step 2: Convert to fraction form
    93,206.32/139,808.80 = 55,776.80/x
  3. Step 3: Cross multiply
    93,206.32x = 139,808.80 × 55,776.80
  4. Step 4: Simplify right side
    93,206.32x = 7,798,087,475.84
  5. Step 5: Solve for x
    x = 7,798,087,475.84/93,206.32
  6. Step 6: Final answer
    x = 83,664.79

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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.