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Finding the Fourth Proportional to 92,897.84, 128,196.90 and 50,455.46

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Solution

The fourth proportional to 92,897.84, 128,196.90 and 50,455.46 is: 69,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,897.84 : 128,196.90 = 50,455.46 : x
  2. Step 2: Convert to fraction form
    92,897.84/128,196.90 = 50,455.46/x
  3. Step 3: Cross multiply
    92,897.84x = 128,196.90 × 50,455.46
  4. Step 4: Simplify right side
    92,897.84x = 6,468,233,560.07
  5. Step 5: Solve for x
    x = 6,468,233,560.07/92,897.84
  6. Step 6: Final answer
    x = 69,627.38

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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.