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Finding the Fourth Proportional to 133,957.50, 184,861.35 and 74,341.50

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Solution

The fourth proportional to 133,957.50, 184,861.35 and 74,341.50 is: 102,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,957.50 : 184,861.35 = 74,341.50 : x
  2. Step 2: Convert to fraction form
    133,957.50/184,861.35 = 74,341.50/x
  3. Step 3: Cross multiply
    133,957.50x = 184,861.35 × 74,341.50
  4. Step 4: Simplify right side
    133,957.50x = 13,742,870,051.03
  5. Step 5: Solve for x
    x = 13,742,870,051.03/133,957.50
  6. Step 6: Final answer
    x = 102,591.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.