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Finding the Fourth Proportional to 111,186.88, 153,423.84 and 88,583.20

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Solution

The fourth proportional to 111,186.88, 153,423.84 and 88,583.20 is: 122,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,186.88 : 153,423.84 = 88,583.20 : x
  2. Step 2: Convert to fraction form
    111,186.88/153,423.84 = 88,583.20/x
  3. Step 3: Cross multiply
    111,186.88x = 153,423.84 × 88,583.20
  4. Step 4: Simplify right side
    111,186.88x = 13,590,774,703.49
  5. Step 5: Solve for x
    x = 13,590,774,703.49/111,186.88
  6. Step 6: Final answer
    x = 122,233.62

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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.