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Finding the Fourth Proportional to 93,113.19, 139,669.04 and 61,663.98

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Solution

The fourth proportional to 93,113.19, 139,669.04 and 61,663.98 is: 92,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,113.19 : 139,669.04 = 61,663.98 : x
  2. Step 2: Convert to fraction form
    93,113.19/139,669.04 = 61,663.98/x
  3. Step 3: Cross multiply
    93,113.19x = 139,669.04 × 61,663.98
  4. Step 4: Simplify right side
    93,113.19x = 8,612,548,889.18
  5. Step 5: Solve for x
    x = 8,612,548,889.18/93,113.19
  6. Step 6: Final answer
    x = 92,495.48

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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.