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Finding the Fourth Proportional to 93,414.06, 128,910.71 and 53,127.77

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Solution

The fourth proportional to 93,414.06, 128,910.71 and 53,127.77 is: 73,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.06 : 128,910.71 = 53,127.77 : x
  2. Step 2: Convert to fraction form
    93,414.06/128,910.71 = 53,127.77/x
  3. Step 3: Cross multiply
    93,414.06x = 128,910.71 × 53,127.77
  4. Step 4: Simplify right side
    93,414.06x = 6,848,737,641.22
  5. Step 5: Solve for x
    x = 6,848,737,641.22/93,414.06
  6. Step 6: Final answer
    x = 73,315.92

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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.