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Finding the Fourth Proportional to 111,240.64, 153,539.55 and 63,521.67

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Solution

The fourth proportional to 111,240.64, 153,539.55 and 63,521.67 is: 87,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,240.64 : 153,539.55 = 63,521.67 : x
  2. Step 2: Convert to fraction form
    111,240.64/153,539.55 = 63,521.67/x
  3. Step 3: Cross multiply
    111,240.64x = 153,539.55 × 63,521.67
  4. Step 4: Simplify right side
    111,240.64x = 9,753,088,339.16
  5. Step 5: Solve for x
    x = 9,753,088,339.16/111,240.64
  6. Step 6: Final answer
    x = 87,675.59

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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.