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Finding the Fourth Proportional to 153,946.56, 230,740.56 and 65,170.56

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Solution

The fourth proportional to 153,946.56, 230,740.56 and 65,170.56 is: 97,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,946.56 : 230,740.56 = 65,170.56 : x
  2. Step 2: Convert to fraction form
    153,946.56/230,740.56 = 65,170.56/x
  3. Step 3: Cross multiply
    153,946.56x = 230,740.56 × 65,170.56
  4. Step 4: Simplify right side
    153,946.56x = 15,037,491,509.91
  5. Step 5: Solve for x
    x = 15,037,491,509.91/153,946.56
  6. Step 6: Final answer
    x = 97,679.94

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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.