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Finding the Fourth Proportional to 252,646.86, 348,643.53 and 139,467.18

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Solution

The fourth proportional to 252,646.86, 348,643.53 and 139,467.18 is: 192,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,646.86 : 348,643.53 = 139,467.18 : x
  2. Step 2: Convert to fraction form
    252,646.86/348,643.53 = 139,467.18/x
  3. Step 3: Cross multiply
    252,646.86x = 348,643.53 × 139,467.18
  4. Step 4: Simplify right side
    252,646.86x = 48,624,329,954.35
  5. Step 5: Solve for x
    x = 48,624,329,954.35/252,646.86
  6. Step 6: Final answer
    x = 192,459.66

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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.