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Finding the Fourth Proportional to 329,779.64, 494,690.16 and 93,140.84

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Solution

The fourth proportional to 329,779.64, 494,690.16 and 93,140.84 is: 139,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,779.64 : 494,690.16 = 93,140.84 : x
  2. Step 2: Convert to fraction form
    329,779.64/494,690.16 = 93,140.84/x
  3. Step 3: Cross multiply
    329,779.64x = 494,690.16 × 93,140.84
  4. Step 4: Simplify right side
    329,779.64x = 46,075,857,042.13
  5. Step 5: Solve for x
    x = 46,075,857,042.13/329,779.64
  6. Step 6: Final answer
    x = 139,717.11

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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.