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Finding the Fourth Proportional to 97,791.90, 134,953.25 and 55,358.63

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Solution

The fourth proportional to 97,791.90, 134,953.25 and 55,358.63 is: 76,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,791.90 : 134,953.25 = 55,358.63 : x
  2. Step 2: Convert to fraction form
    97,791.90/134,953.25 = 55,358.63/x
  3. Step 3: Cross multiply
    97,791.90x = 134,953.25 × 55,358.63
  4. Step 4: Simplify right side
    97,791.90x = 7,470,827,034.05
  5. Step 5: Solve for x
    x = 7,470,827,034.05/97,791.90
  6. Step 6: Final answer
    x = 76,395.15

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1.5x scale

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.