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Finding the Fourth Proportional to 97,091.65, 145,658.27 and 54,991.63

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Solution

The fourth proportional to 97,091.65, 145,658.27 and 54,991.63 is: 82,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,091.65 : 145,658.27 = 54,991.63 : x
  2. Step 2: Convert to fraction form
    97,091.65/145,658.27 = 54,991.63/x
  3. Step 3: Cross multiply
    97,091.65x = 145,658.27 × 54,991.63
  4. Step 4: Simplify right side
    97,091.65x = 8,009,985,690.28
  5. Step 5: Solve for x
    x = 8,009,985,690.28/97,091.65
  6. Step 6: Final answer
    x = 82,499.22

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1.5x scale

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.