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Finding the Fourth Proportional to 346,313.70, 519,470.55 and 121,708.80

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Solution

The fourth proportional to 346,313.70, 519,470.55 and 121,708.80 is: 182,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,313.70 : 519,470.55 = 121,708.80 : x
  2. Step 2: Convert to fraction form
    346,313.70/519,470.55 = 121,708.80/x
  3. Step 3: Cross multiply
    346,313.70x = 519,470.55 × 121,708.80
  4. Step 4: Simplify right side
    346,313.70x = 63,224,137,275.84
  5. Step 5: Solve for x
    x = 63,224,137,275.84/346,313.70
  6. Step 6: Final answer
    x = 182,563.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.