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Finding the Fourth Proportional to 140,188.59, 193,458.93 and 86,452.11

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Solution

The fourth proportional to 140,188.59, 193,458.93 and 86,452.11 is: 119,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,188.59 : 193,458.93 = 86,452.11 : x
  2. Step 2: Convert to fraction form
    140,188.59/193,458.93 = 86,452.11/x
  3. Step 3: Cross multiply
    140,188.59x = 193,458.93 × 86,452.11
  4. Step 4: Simplify right side
    140,188.59x = 16,724,932,696.84
  5. Step 5: Solve for x
    x = 16,724,932,696.84/140,188.59
  6. Step 6: Final answer
    x = 119,303.10

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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.