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Finding the Fourth Proportional to 252,622.81, 348,618.76 and 139,444.75

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Solution

The fourth proportional to 252,622.81, 348,618.76 and 139,444.75 is: 192,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,622.81 : 348,618.76 = 139,444.75 : x
  2. Step 2: Convert to fraction form
    252,622.81/348,618.76 = 139,444.75/x
  3. Step 3: Cross multiply
    252,622.81x = 348,618.76 × 139,444.75
  4. Step 4: Simplify right side
    252,622.81x = 48,613,055,833.51
  5. Step 5: Solve for x
    x = 48,613,055,833.51/252,622.81
  6. Step 6: Final answer
    x = 192,433.36

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1.5x scale

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.