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Finding the Fourth Proportional to 252,199.94, 348,038.25 and 139,026.74

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Solution

The fourth proportional to 252,199.94, 348,038.25 and 139,026.74 is: 191,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,199.94 : 348,038.25 = 139,026.74 : x
  2. Step 2: Convert to fraction form
    252,199.94/348,038.25 = 139,026.74/x
  3. Step 3: Cross multiply
    252,199.94x = 348,038.25 × 139,026.74
  4. Step 4: Simplify right side
    252,199.94x = 48,386,623,292.81
  5. Step 5: Solve for x
    x = 48,386,623,292.81/252,199.94
  6. Step 6: Final answer
    x = 191,858.19

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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.