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Finding the Fourth Proportional to 111,525.84, 153,885.60 and 63,127.44

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Solution

The fourth proportional to 111,525.84, 153,885.60 and 63,127.44 is: 87,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,525.84 : 153,885.60 = 63,127.44 : x
  2. Step 2: Convert to fraction form
    111,525.84/153,885.60 = 63,127.44/x
  3. Step 3: Cross multiply
    111,525.84x = 153,885.60 × 63,127.44
  4. Step 4: Simplify right side
    111,525.84x = 9,714,403,980.86
  5. Step 5: Solve for x
    x = 9,714,403,980.86/111,525.84
  6. Step 6: Final answer
    x = 87,104.51

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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.