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Finding the Fourth Proportional to 92,897.57, 128,197.94 and 50,456.40

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Solution

The fourth proportional to 92,897.57, 128,197.94 and 50,456.40 is: 69,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,897.57 : 128,197.94 = 50,456.40 : x
  2. Step 2: Convert to fraction form
    92,897.57/128,197.94 = 50,456.40/x
  3. Step 3: Cross multiply
    92,897.57x = 128,197.94 × 50,456.40
  4. Step 4: Simplify right side
    92,897.57x = 6,468,406,287.53
  5. Step 5: Solve for x
    x = 6,468,406,287.53/92,897.57
  6. Step 6: Final answer
    x = 69,629.45

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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.