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Finding the Fourth Proportional to 109,950.40, 164,925.60 and 54,654.40

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Solution

The fourth proportional to 109,950.40, 164,925.60 and 54,654.40 is: 81,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,950.40 : 164,925.60 = 54,654.40 : x
  2. Step 2: Convert to fraction form
    109,950.40/164,925.60 = 54,654.40/x
  3. Step 3: Cross multiply
    109,950.40x = 164,925.60 × 54,654.40
  4. Step 4: Simplify right side
    109,950.40x = 9,013,909,712.64
  5. Step 5: Solve for x
    x = 9,013,909,712.64/109,950.40
  6. Step 6: Final answer
    x = 81,981.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.