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Finding the Fourth Proportional to 252,518, 348,482.13 and 139,348.04

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Solution

The fourth proportional to 252,518, 348,482.13 and 139,348.04 is: 192,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,518 : 348,482.13 = 139,348.04 : x
  2. Step 2: Convert to fraction form
    252,518/348,482.13 = 139,348.04/x
  3. Step 3: Cross multiply
    252,518x = 348,482.13 × 139,348.04
  4. Step 4: Simplify right side
    252,518x = 48,560,301,790.53
  5. Step 5: Solve for x
    x = 48,560,301,790.53/252,518
  6. Step 6: Final answer
    x = 192,304.32

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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.