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Finding the Fourth Proportional to 97,172.60, 145,758.90 and 55,590.44

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Solution

The fourth proportional to 97,172.60, 145,758.90 and 55,590.44 is: 83,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,172.60 : 145,758.90 = 55,590.44 : x
  2. Step 2: Convert to fraction form
    97,172.60/145,758.90 = 55,590.44/x
  3. Step 3: Cross multiply
    97,172.60x = 145,758.90 × 55,590.44
  4. Step 4: Simplify right side
    97,172.60x = 8,102,801,384.92
  5. Step 5: Solve for x
    x = 8,102,801,384.92/97,172.60
  6. Step 6: Final answer
    x = 83,385.66

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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.