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Finding the Fourth Proportional to 111,555.68, 153,947.40 and 63,811.04

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Solution

The fourth proportional to 111,555.68, 153,947.40 and 63,811.04 is: 88,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,555.68 : 153,947.40 = 63,811.04 : x
  2. Step 2: Convert to fraction form
    111,555.68/153,947.40 = 63,811.04/x
  3. Step 3: Cross multiply
    111,555.68x = 153,947.40 × 63,811.04
  4. Step 4: Simplify right side
    111,555.68x = 9,823,543,699.30
  5. Step 5: Solve for x
    x = 9,823,543,699.30/111,555.68
  6. Step 6: Final answer
    x = 88,059.56

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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.