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Finding the Fourth Proportional to 145,055.96, 217,594.11 and 60,731.01

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Solution

The fourth proportional to 145,055.96, 217,594.11 and 60,731.01 is: 91,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,055.96 : 217,594.11 = 60,731.01 : x
  2. Step 2: Convert to fraction form
    145,055.96/217,594.11 = 60,731.01/x
  3. Step 3: Cross multiply
    145,055.96x = 217,594.11 × 60,731.01
  4. Step 4: Simplify right side
    145,055.96x = 13,214,710,070.35
  5. Step 5: Solve for x
    x = 13,214,710,070.35/145,055.96
  6. Step 6: Final answer
    x = 91,100.78

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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.