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Finding the Fourth Proportional to 93,129.48, 139,750.29 and 33,970.32

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Solution

The fourth proportional to 93,129.48, 139,750.29 and 33,970.32 is: 50,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,129.48 : 139,750.29 = 33,970.32 : x
  2. Step 2: Convert to fraction form
    93,129.48/139,750.29 = 33,970.32/x
  3. Step 3: Cross multiply
    93,129.48x = 139,750.29 × 33,970.32
  4. Step 4: Simplify right side
    93,129.48x = 4,747,362,071.39
  5. Step 5: Solve for x
    x = 4,747,362,071.39/93,129.48
  6. Step 6: Final answer
    x = 50,975.93

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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.