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Finding the Fourth Proportional to 93,328.20, 139,955.90 and 40,701.80

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Solution

The fourth proportional to 93,328.20, 139,955.90 and 40,701.80 is: 61,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,328.20 : 139,955.90 = 40,701.80 : x
  2. Step 2: Convert to fraction form
    93,328.20/139,955.90 = 40,701.80/x
  3. Step 3: Cross multiply
    93,328.20x = 139,955.90 × 40,701.80
  4. Step 4: Simplify right side
    93,328.20x = 5,696,457,050.62
  5. Step 5: Solve for x
    x = 5,696,457,050.62/93,328.20
  6. Step 6: Final answer
    x = 61,036.83

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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.