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Finding the Fourth Proportional to 113,655.48, 156,838.86 and 63,344.76

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Solution

The fourth proportional to 113,655.48, 156,838.86 and 63,344.76 is: 87,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,655.48 : 156,838.86 = 63,344.76 : x
  2. Step 2: Convert to fraction form
    113,655.48/156,838.86 = 63,344.76/x
  3. Step 3: Cross multiply
    113,655.48x = 156,838.86 × 63,344.76
  4. Step 4: Simplify right side
    113,655.48x = 9,934,919,945.37
  5. Step 5: Solve for x
    x = 9,934,919,945.37/113,655.48
  6. Step 6: Final answer
    x = 87,412.59

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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.