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Finding the Fourth Proportional to 111,070.98, 153,274.14 and 63,339.69

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Solution

The fourth proportional to 111,070.98, 153,274.14 and 63,339.69 is: 87,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,070.98 : 153,274.14 = 63,339.69 : x
  2. Step 2: Convert to fraction form
    111,070.98/153,274.14 = 63,339.69/x
  3. Step 3: Cross multiply
    111,070.98x = 153,274.14 × 63,339.69
  4. Step 4: Simplify right side
    111,070.98x = 9,708,336,512.62
  5. Step 5: Solve for x
    x = 9,708,336,512.62/111,070.98
  6. Step 6: Final answer
    x = 87,406.60

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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.