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Finding the Fourth Proportional to 176,214.56, 243,178 and 95,642.80

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Solution

The fourth proportional to 176,214.56, 243,178 and 95,642.80 is: 131,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,214.56 : 243,178 = 95,642.80 : x
  2. Step 2: Convert to fraction form
    176,214.56/243,178 = 95,642.80/x
  3. Step 3: Cross multiply
    176,214.56x = 243,178 × 95,642.80
  4. Step 4: Simplify right side
    176,214.56x = 23,258,224,818.40
  5. Step 5: Solve for x
    x = 23,258,224,818.40/176,214.56
  6. Step 6: Final answer
    x = 131,988.10

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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.