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Finding the Fourth Proportional to 108,709.40, 163,075.26 and 37,631.94

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Solution

The fourth proportional to 108,709.40, 163,075.26 and 37,631.94 is: 56,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,709.40 : 163,075.26 = 37,631.94 : x
  2. Step 2: Convert to fraction form
    108,709.40/163,075.26 = 37,631.94/x
  3. Step 3: Cross multiply
    108,709.40x = 163,075.26 × 37,631.94
  4. Step 4: Simplify right side
    108,709.40x = 6,136,838,399.80
  5. Step 5: Solve for x
    x = 6,136,838,399.80/108,709.40
  6. Step 6: Final answer
    x = 56,451.77

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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.