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Finding the Fourth Proportional to 92,848.21, 128,130.86 and 50,406.71

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Solution

The fourth proportional to 92,848.21, 128,130.86 and 50,406.71 is: 69,561.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,848.21 : 128,130.86 = 50,406.71 : x
  2. Step 2: Convert to fraction form
    92,848.21/128,130.86 = 50,406.71/x
  3. Step 3: Cross multiply
    92,848.21x = 128,130.86 × 50,406.71
  4. Step 4: Simplify right side
    92,848.21x = 6,458,654,587.43
  5. Step 5: Solve for x
    x = 6,458,654,587.43/92,848.21
  6. Step 6: Final answer
    x = 69,561.44

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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.