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Finding the Fourth Proportional to 93,070.64, 139,604.15 and 26,511.20

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Solution

The fourth proportional to 93,070.64, 139,604.15 and 26,511.20 is: 39,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,070.64 : 139,604.15 = 26,511.20 : x
  2. Step 2: Convert to fraction form
    93,070.64/139,604.15 = 26,511.20/x
  3. Step 3: Cross multiply
    93,070.64x = 139,604.15 × 26,511.20
  4. Step 4: Simplify right side
    93,070.64x = 3,701,072,909.74
  5. Step 5: Solve for x
    x = 3,701,072,909.74/93,070.64
  6. Step 6: Final answer
    x = 39,766.28

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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.