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Finding the Fourth Proportional to 92,866.40, 139,204.28 and 36,683.76

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Solution

The fourth proportional to 92,866.40, 139,204.28 and 36,683.76 is: 54,987.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,866.40 : 139,204.28 = 36,683.76 : x
  2. Step 2: Convert to fraction form
    92,866.40/139,204.28 = 36,683.76/x
  3. Step 3: Cross multiply
    92,866.40x = 139,204.28 × 36,683.76
  4. Step 4: Simplify right side
    92,866.40x = 5,106,536,398.49
  5. Step 5: Solve for x
    x = 5,106,536,398.49/92,866.40
  6. Step 6: Final answer
    x = 54,987.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.