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Finding the Fourth Proportional to 92,955.04, 128,296.58 and 55,222

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Solution

The fourth proportional to 92,955.04, 128,296.58 and 55,222 is: 76,217.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,955.04 : 128,296.58 = 55,222 : x
  2. Step 2: Convert to fraction form
    92,955.04/128,296.58 = 55,222/x
  3. Step 3: Cross multiply
    92,955.04x = 128,296.58 × 55,222
  4. Step 4: Simplify right side
    92,955.04x = 7,084,793,740.76
  5. Step 5: Solve for x
    x = 7,084,793,740.76/92,955.04
  6. Step 6: Final answer
    x = 76,217.42

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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.