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Finding the Fourth Proportional to 133,457.76, 184,322.88 and 90,942.48

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Solution

The fourth proportional to 133,457.76, 184,322.88 and 90,942.48 is: 125,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,457.76 : 184,322.88 = 90,942.48 : x
  2. Step 2: Convert to fraction form
    133,457.76/184,322.88 = 90,942.48/x
  3. Step 3: Cross multiply
    133,457.76x = 184,322.88 × 90,942.48
  4. Step 4: Simplify right side
    133,457.76x = 16,762,779,827.94
  5. Step 5: Solve for x
    x = 16,762,779,827.94/133,457.76
  6. Step 6: Final answer
    x = 125,603.64

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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.