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Finding the Fourth Proportional to 113,606.76, 156,777.75 and 63,305.76

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Solution

The fourth proportional to 113,606.76, 156,777.75 and 63,305.76 is: 87,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,606.76 : 156,777.75 = 63,305.76 : x
  2. Step 2: Convert to fraction form
    113,606.76/156,777.75 = 63,305.76/x
  3. Step 3: Cross multiply
    113,606.76x = 156,777.75 × 63,305.76
  4. Step 4: Simplify right side
    113,606.76x = 9,924,934,614.84
  5. Step 5: Solve for x
    x = 9,924,934,614.84/113,606.76
  6. Step 6: Final answer
    x = 87,362.18

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1.5x scale

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.