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Finding the Fourth Proportional to 92,507.49, 138,816.60 and 39,916.98

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Solution

The fourth proportional to 92,507.49, 138,816.60 and 39,916.98 is: 59,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.49 : 138,816.60 = 39,916.98 : x
  2. Step 2: Convert to fraction form
    92,507.49/138,816.60 = 39,916.98/x
  3. Step 3: Cross multiply
    92,507.49x = 138,816.60 × 39,916.98
  4. Step 4: Simplify right side
    92,507.49x = 5,541,139,246.28
  5. Step 5: Solve for x
    x = 5,541,139,246.28/92,507.49
  6. Step 6: Final answer
    x = 59,899.36

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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.