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Finding the Fourth Proportional to 354,133, 531,303.54 and 104,821.48

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Solution

The fourth proportional to 354,133, 531,303.54 and 104,821.48 is: 157,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,133 : 531,303.54 = 104,821.48 : x
  2. Step 2: Convert to fraction form
    354,133/531,303.54 = 104,821.48/x
  3. Step 3: Cross multiply
    354,133x = 531,303.54 × 104,821.48
  4. Step 4: Simplify right side
    354,133x = 55,692,023,392.04
  5. Step 5: Solve for x
    x = 55,692,023,392.04/354,133
  6. Step 6: Final answer
    x = 157,263.02

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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.