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Finding the Fourth Proportional to 93,006.40, 139,509.60 and 84,841.60

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Solution

The fourth proportional to 93,006.40, 139,509.60 and 84,841.60 is: 127,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,006.40 : 139,509.60 = 84,841.60 : x
  2. Step 2: Convert to fraction form
    93,006.40/139,509.60 = 84,841.60/x
  3. Step 3: Cross multiply
    93,006.40x = 139,509.60 × 84,841.60
  4. Step 4: Simplify right side
    93,006.40x = 11,836,217,679.36
  5. Step 5: Solve for x
    x = 11,836,217,679.36/93,006.40
  6. Step 6: Final answer
    x = 127,262.40

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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.