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Finding the Fourth Proportional to 93,154.50, 128,553.21 and 50,710.50

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Solution

The fourth proportional to 93,154.50, 128,553.21 and 50,710.50 is: 69,980.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,154.50 : 128,553.21 = 50,710.50 : x
  2. Step 2: Convert to fraction form
    93,154.50/128,553.21 = 50,710.50/x
  3. Step 3: Cross multiply
    93,154.50x = 128,553.21 × 50,710.50
  4. Step 4: Simplify right side
    93,154.50x = 6,518,997,555.71
  5. Step 5: Solve for x
    x = 6,518,997,555.71/93,154.50
  6. Step 6: Final answer
    x = 69,980.49

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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.