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Finding the Fourth Proportional to 111,366.90, 153,695.07 and 63,635.63

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Solution

The fourth proportional to 111,366.90, 153,695.07 and 63,635.63 is: 87,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,366.90 : 153,695.07 = 63,635.63 : x
  2. Step 2: Convert to fraction form
    111,366.90/153,695.07 = 63,635.63/x
  3. Step 3: Cross multiply
    111,366.90x = 153,695.07 × 63,635.63
  4. Step 4: Simplify right side
    111,366.90x = 9,780,481,838.87
  5. Step 5: Solve for x
    x = 9,780,481,838.87/111,366.90
  6. Step 6: Final answer
    x = 87,822.16

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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.