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Finding the Fourth Proportional to 93,007.80, 128,349.36 and 50,565.96

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Solution

The fourth proportional to 93,007.80, 128,349.36 and 50,565.96 is: 69,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,007.80 : 128,349.36 = 50,565.96 : x
  2. Step 2: Convert to fraction form
    93,007.80/128,349.36 = 50,565.96/x
  3. Step 3: Cross multiply
    93,007.80x = 128,349.36 × 50,565.96
  4. Step 4: Simplify right side
    93,007.80x = 6,490,108,603.79
  5. Step 5: Solve for x
    x = 6,490,108,603.79/93,007.80
  6. Step 6: Final answer
    x = 69,780.26

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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.