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Finding the Fourth Proportional to 219,075.30, 328,612.95 and 124,596.90

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Solution

The fourth proportional to 219,075.30, 328,612.95 and 124,596.90 is: 186,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,075.30 : 328,612.95 = 124,596.90 : x
  2. Step 2: Convert to fraction form
    219,075.30/328,612.95 = 124,596.90/x
  3. Step 3: Cross multiply
    219,075.30x = 328,612.95 × 124,596.90
  4. Step 4: Simplify right side
    219,075.30x = 40,944,154,869.86
  5. Step 5: Solve for x
    x = 40,944,154,869.86/219,075.30
  6. Step 6: Final answer
    x = 186,895.35

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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.