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Finding the Fourth Proportional to 176,457.28, 243,441.84 and 100,965.28

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Solution

The fourth proportional to 176,457.28, 243,441.84 and 100,965.28 is: 139,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,457.28 : 243,441.84 = 100,965.28 : x
  2. Step 2: Convert to fraction form
    176,457.28/243,441.84 = 100,965.28/x
  3. Step 3: Cross multiply
    176,457.28x = 243,441.84 × 100,965.28
  4. Step 4: Simplify right side
    176,457.28x = 24,579,173,539.32
  5. Step 5: Solve for x
    x = 24,579,173,539.32/176,457.28
  6. Step 6: Final answer
    x = 139,292.49

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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.