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Finding the Fourth Proportional to 111,605.48, 154,016.68 and 60,619.21

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Solution

The fourth proportional to 111,605.48, 154,016.68 and 60,619.21 is: 83,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,605.48 : 154,016.68 = 60,619.21 : x
  2. Step 2: Convert to fraction form
    111,605.48/154,016.68 = 60,619.21/x
  3. Step 3: Cross multiply
    111,605.48x = 154,016.68 × 60,619.21
  4. Step 4: Simplify right side
    111,605.48x = 9,336,369,159.16
  5. Step 5: Solve for x
    x = 9,336,369,159.16/111,605.48
  6. Step 6: Final answer
    x = 83,655.11

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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.