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Finding the Fourth Proportional to 134,038.71, 184,978.34 and 73,614.93

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Solution

The fourth proportional to 134,038.71, 184,978.34 and 73,614.93 is: 101,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,038.71 : 184,978.34 = 73,614.93 : x
  2. Step 2: Convert to fraction form
    134,038.71/184,978.34 = 73,614.93/x
  3. Step 3: Cross multiply
    134,038.71x = 184,978.34 × 73,614.93
  4. Step 4: Simplify right side
    134,038.71x = 13,617,167,550.62
  5. Step 5: Solve for x
    x = 13,617,167,550.62/134,038.71
  6. Step 6: Final answer
    x = 101,591.31

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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.