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Finding the Fourth Proportional to 111,365.99, 153,684.58 and 60,378.56

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Solution

The fourth proportional to 111,365.99, 153,684.58 and 60,378.56 is: 83,322.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,365.99 : 153,684.58 = 60,378.56 : x
  2. Step 2: Convert to fraction form
    111,365.99/153,684.58 = 60,378.56/x
  3. Step 3: Cross multiply
    111,365.99x = 153,684.58 × 60,378.56
  4. Step 4: Simplify right side
    111,365.99x = 9,279,252,948.50
  5. Step 5: Solve for x
    x = 9,279,252,948.50/111,365.99
  6. Step 6: Final answer
    x = 83,322.15

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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.