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Finding the Fourth Proportional to 106,663.88, 147,193.34 and 58,916.21

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Solution

The fourth proportional to 106,663.88, 147,193.34 and 58,916.21 is: 81,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,663.88 : 147,193.34 = 58,916.21 : x
  2. Step 2: Convert to fraction form
    106,663.88/147,193.34 = 58,916.21/x
  3. Step 3: Cross multiply
    106,663.88x = 147,193.34 × 58,916.21
  4. Step 4: Simplify right side
    106,663.88x = 8,672,072,699.49
  5. Step 5: Solve for x
    x = 8,672,072,699.49/106,663.88
  6. Step 6: Final answer
    x = 81,302.81

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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.