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Finding the Fourth Proportional to 118,522.89, 163,693.64 and 109,554.83

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Solution

The fourth proportional to 118,522.89, 163,693.64 and 109,554.83 is: 151,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,522.89 : 163,693.64 = 109,554.83 : x
  2. Step 2: Convert to fraction form
    118,522.89/163,693.64 = 109,554.83/x
  3. Step 3: Cross multiply
    118,522.89x = 163,693.64 × 109,554.83
  4. Step 4: Simplify right side
    118,522.89x = 17,933,427,536.04
  5. Step 5: Solve for x
    x = 17,933,427,536.04/118,522.89
  6. Step 6: Final answer
    x = 151,307.71

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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.