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Finding the Fourth Proportional to 92,161.98, 138,127.95 and 39,510.36

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Solution

The fourth proportional to 92,161.98, 138,127.95 and 39,510.36 is: 59,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,161.98 : 138,127.95 = 39,510.36 : x
  2. Step 2: Convert to fraction form
    92,161.98/138,127.95 = 39,510.36/x
  3. Step 3: Cross multiply
    92,161.98x = 138,127.95 × 39,510.36
  4. Step 4: Simplify right side
    92,161.98x = 5,457,485,030.56
  5. Step 5: Solve for x
    x = 5,457,485,030.56/92,161.98
  6. Step 6: Final answer
    x = 59,216.23

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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.