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Finding the Fourth Proportional to 92,995.40, 128,332.14 and 50,555

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Solution

The fourth proportional to 92,995.40, 128,332.14 and 50,555 is: 69,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,995.40 : 128,332.14 = 50,555 : x
  2. Step 2: Convert to fraction form
    92,995.40/128,332.14 = 50,555/x
  3. Step 3: Cross multiply
    92,995.40x = 128,332.14 × 50,555
  4. Step 4: Simplify right side
    92,995.40x = 6,487,831,337.70
  5. Step 5: Solve for x
    x = 6,487,831,337.70/92,995.40
  6. Step 6: Final answer
    x = 69,765.08

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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.