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Finding the Fourth Proportional to 110,903.55, 153,074.10 and 63,185.04

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Solution

The fourth proportional to 110,903.55, 153,074.10 and 63,185.04 is: 87,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,903.55 : 153,074.10 = 63,185.04 : x
  2. Step 2: Convert to fraction form
    110,903.55/153,074.10 = 63,185.04/x
  3. Step 3: Cross multiply
    110,903.55x = 153,074.10 × 63,185.04
  4. Step 4: Simplify right side
    110,903.55x = 9,671,993,131.46
  5. Step 5: Solve for x
    x = 9,671,993,131.46/110,903.55
  6. Step 6: Final answer
    x = 87,210.85

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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.