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Finding the Fourth Proportional to 153,765.95, 230,665.31 and 65,028.42

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Solution

The fourth proportional to 153,765.95, 230,665.31 and 65,028.42 is: 97,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,765.95 : 230,665.31 = 65,028.42 : x
  2. Step 2: Convert to fraction form
    153,765.95/230,665.31 = 65,028.42/x
  3. Step 3: Cross multiply
    153,765.95x = 230,665.31 × 65,028.42
  4. Step 4: Simplify right side
    153,765.95x = 14,999,800,332.97
  5. Step 5: Solve for x
    x = 14,999,800,332.97/153,765.95
  6. Step 6: Final answer
    x = 97,549.56

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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.