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Finding the Fourth Proportional to 193,497.35, 290,134.28 and 75,030.30

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Solution

The fourth proportional to 193,497.35, 290,134.28 and 75,030.30 is: 112,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,497.35 : 290,134.28 = 75,030.30 : x
  2. Step 2: Convert to fraction form
    193,497.35/290,134.28 = 75,030.30/x
  3. Step 3: Cross multiply
    193,497.35x = 290,134.28 × 75,030.30
  4. Step 4: Simplify right side
    193,497.35x = 21,768,861,693.53
  5. Step 5: Solve for x
    x = 21,768,861,693.53/193,497.35
  6. Step 6: Final answer
    x = 112,502.12

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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.