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Finding the Fourth Proportional to 93,429.60, 139,816.35 and 63,905.10

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Solution

The fourth proportional to 93,429.60, 139,816.35 and 63,905.10 is: 95,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,429.60 : 139,816.35 = 63,905.10 : x
  2. Step 2: Convert to fraction form
    93,429.60/139,816.35 = 63,905.10/x
  3. Step 3: Cross multiply
    93,429.60x = 139,816.35 × 63,905.10
  4. Step 4: Simplify right side
    93,429.60x = 8,934,977,828.39
  5. Step 5: Solve for x
    x = 8,934,977,828.39/93,429.60
  6. Step 6: Final answer
    x = 95,633.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.