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Finding the Fourth Proportional to 93,102.71, 139,570.98 and 77,436.26

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Solution

The fourth proportional to 93,102.71, 139,570.98 and 77,436.26 is: 116,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.71 : 139,570.98 = 77,436.26 : x
  2. Step 2: Convert to fraction form
    93,102.71/139,570.98 = 77,436.26/x
  3. Step 3: Cross multiply
    93,102.71x = 139,570.98 × 77,436.26
  4. Step 4: Simplify right side
    93,102.71x = 10,807,853,997.88
  5. Step 5: Solve for x
    x = 10,807,853,997.88/93,102.71
  6. Step 6: Final answer
    x = 116,085.28

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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.