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Finding the Fourth Proportional to 252,561.76, 348,533.61 and 139,384.51

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Solution

The fourth proportional to 252,561.76, 348,533.61 and 139,384.51 is: 192,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,561.76 : 348,533.61 = 139,384.51 : x
  2. Step 2: Convert to fraction form
    252,561.76/348,533.61 = 139,384.51/x
  3. Step 3: Cross multiply
    252,561.76x = 348,533.61 × 139,384.51
  4. Step 4: Simplify right side
    252,561.76x = 48,580,186,448.38
  5. Step 5: Solve for x
    x = 48,580,186,448.38/252,561.76
  6. Step 6: Final answer
    x = 192,349.73

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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.