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Finding the Fourth Proportional to 111,308.58, 153,616.50 and 63,569.07

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Solution

The fourth proportional to 111,308.58, 153,616.50 and 63,569.07 is: 87,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,308.58 : 153,616.50 = 63,569.07 : x
  2. Step 2: Convert to fraction form
    111,308.58/153,616.50 = 63,569.07/x
  3. Step 3: Cross multiply
    111,308.58x = 153,616.50 × 63,569.07
  4. Step 4: Simplify right side
    111,308.58x = 9,765,258,041.66
  5. Step 5: Solve for x
    x = 9,765,258,041.66/111,308.58
  6. Step 6: Final answer
    x = 87,731.40

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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.