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Finding the Fourth Proportional to 111,284.94, 153,569.88 and 63,528.96

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Solution

The fourth proportional to 111,284.94, 153,569.88 and 63,528.96 is: 87,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,284.94 : 153,569.88 = 63,528.96 : x
  2. Step 2: Convert to fraction form
    111,284.94/153,569.88 = 63,528.96/x
  3. Step 3: Cross multiply
    111,284.94x = 153,569.88 × 63,528.96
  4. Step 4: Simplify right side
    111,284.94x = 9,756,134,763.72
  5. Step 5: Solve for x
    x = 9,756,134,763.72/111,284.94
  6. Step 6: Final answer
    x = 87,668.06

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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.