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Finding the Fourth Proportional to 93,088.48, 128,462.64 and 50,647.30

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Solution

The fourth proportional to 93,088.48, 128,462.64 and 50,647.30 is: 69,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,088.48 : 128,462.64 = 50,647.30 : x
  2. Step 2: Convert to fraction form
    93,088.48/128,462.64 = 50,647.30/x
  3. Step 3: Cross multiply
    93,088.48x = 128,462.64 × 50,647.30
  4. Step 4: Simplify right side
    93,088.48x = 6,506,285,866.87
  5. Step 5: Solve for x
    x = 6,506,285,866.87/93,088.48
  6. Step 6: Final answer
    x = 69,893.57

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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.