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Finding the Fourth Proportional to 93,755.82, 129,385.16 and 51,314.46

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Solution

The fourth proportional to 93,755.82, 129,385.16 and 51,314.46 is: 70,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,755.82 : 129,385.16 = 51,314.46 : x
  2. Step 2: Convert to fraction form
    93,755.82/129,385.16 = 51,314.46/x
  3. Step 3: Cross multiply
    93,755.82x = 129,385.16 × 51,314.46
  4. Step 4: Simplify right side
    93,755.82x = 6,639,329,617.41
  5. Step 5: Solve for x
    x = 6,639,329,617.41/93,755.82
  6. Step 6: Final answer
    x = 70,815.12

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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.