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Finding the Fourth Proportional to 354,557.16, 531,859.86 and 101,818.26

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Solution

The fourth proportional to 354,557.16, 531,859.86 and 101,818.26 is: 152,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,557.16 : 531,859.86 = 101,818.26 : x
  2. Step 2: Convert to fraction form
    354,557.16/531,859.86 = 101,818.26/x
  3. Step 3: Cross multiply
    354,557.16x = 531,859.86 × 101,818.26
  4. Step 4: Simplify right side
    354,557.16x = 54,153,045,509.04
  5. Step 5: Solve for x
    x = 54,153,045,509.04/354,557.16
  6. Step 6: Final answer
    x = 152,734.32

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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.