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Finding the Fourth Proportional to 145,054.64, 217,592.50 and 60,730

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Solution

The fourth proportional to 145,054.64, 217,592.50 and 60,730 is: 91,099.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,054.64 : 217,592.50 = 60,730 : x
  2. Step 2: Convert to fraction form
    145,054.64/217,592.50 = 60,730/x
  3. Step 3: Cross multiply
    145,054.64x = 217,592.50 × 60,730
  4. Step 4: Simplify right side
    145,054.64x = 13,214,392,525
  5. Step 5: Solve for x
    x = 13,214,392,525/145,054.64
  6. Step 6: Final answer
    x = 91,099.41

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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.