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Finding the Fourth Proportional to 108,024.48, 149,256.48 and 77,749.92

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Solution

The fourth proportional to 108,024.48, 149,256.48 and 77,749.92 is: 107,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,024.48 : 149,256.48 = 77,749.92 : x
  2. Step 2: Convert to fraction form
    108,024.48/149,256.48 = 77,749.92/x
  3. Step 3: Cross multiply
    108,024.48x = 149,256.48 × 77,749.92
  4. Step 4: Simplify right side
    108,024.48x = 11,604,679,379.48
  5. Step 5: Solve for x
    x = 11,604,679,379.48/108,024.48
  6. Step 6: Final answer
    x = 107,426.39

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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.