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Finding the Fourth Proportional to 119,592, 165,075.84 and 69,281.28

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Solution

The fourth proportional to 119,592, 165,075.84 and 69,281.28 is: 95,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,592 : 165,075.84 = 69,281.28 : x
  2. Step 2: Convert to fraction form
    119,592/165,075.84 = 69,281.28/x
  3. Step 3: Cross multiply
    119,592x = 165,075.84 × 69,281.28
  4. Step 4: Simplify right side
    119,592x = 11,436,665,492.28
  5. Step 5: Solve for x
    x = 11,436,665,492.28/119,592
  6. Step 6: Final answer
    x = 95,630.69

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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.