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Finding the Fourth Proportional to 111,141.66, 153,447.03 and 99,184.46

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Solution

The fourth proportional to 111,141.66, 153,447.03 and 99,184.46 is: 136,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,141.66 : 153,447.03 = 99,184.46 : x
  2. Step 2: Convert to fraction form
    111,141.66/153,447.03 = 99,184.46/x
  3. Step 3: Cross multiply
    111,141.66x = 153,447.03 × 99,184.46
  4. Step 4: Simplify right side
    111,141.66x = 15,219,560,809.15
  5. Step 5: Solve for x
    x = 15,219,560,809.15/111,141.66
  6. Step 6: Final answer
    x = 136,938.40

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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.