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Finding the Fourth Proportional to 219,168.48, 328,309.68 and 169,075.32

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Solution

The fourth proportional to 219,168.48, 328,309.68 and 169,075.32 is: 253,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,168.48 : 328,309.68 = 169,075.32 : x
  2. Step 2: Convert to fraction form
    219,168.48/328,309.68 = 169,075.32/x
  3. Step 3: Cross multiply
    219,168.48x = 328,309.68 × 169,075.32
  4. Step 4: Simplify right side
    219,168.48x = 55,509,064,205.10
  5. Step 5: Solve for x
    x = 55,509,064,205.10/219,168.48
  6. Step 6: Final answer
    x = 253,271.20

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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.