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Finding the Fourth Proportional to 93,064.13, 139,243.93 and 55,133.76

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Solution

The fourth proportional to 93,064.13, 139,243.93 and 55,133.76 is: 82,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,064.13 : 139,243.93 = 55,133.76 : x
  2. Step 2: Convert to fraction form
    93,064.13/139,243.93 = 55,133.76/x
  3. Step 3: Cross multiply
    93,064.13x = 139,243.93 × 55,133.76
  4. Step 4: Simplify right side
    93,064.13x = 7,677,041,802.41
  5. Step 5: Solve for x
    x = 7,677,041,802.41/93,064.13
  6. Step 6: Final answer
    x = 82,491.95

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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.