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Finding the Fourth Proportional to 93,276.40, 139,838.36 and 43,387.60

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Solution

The fourth proportional to 93,276.40, 139,838.36 and 43,387.60 is: 65,045.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,276.40 : 139,838.36 = 43,387.60 : x
  2. Step 2: Convert to fraction form
    93,276.40/139,838.36 = 43,387.60/x
  3. Step 3: Cross multiply
    93,276.40x = 139,838.36 × 43,387.60
  4. Step 4: Simplify right side
    93,276.40x = 6,067,250,828.34
  5. Step 5: Solve for x
    x = 6,067,250,828.34/93,276.40
  6. Step 6: Final answer
    x = 65,045.94

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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.