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Finding the Fourth Proportional to 324,528.15, 486,798.49 and 99,888.35

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Solution

The fourth proportional to 324,528.15, 486,798.49 and 99,888.35 is: 149,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,528.15 : 486,798.49 = 99,888.35 : x
  2. Step 2: Convert to fraction form
    324,528.15/486,798.49 = 99,888.35/x
  3. Step 3: Cross multiply
    324,528.15x = 486,798.49 × 99,888.35
  4. Step 4: Simplify right side
    324,528.15x = 48,625,499,746.82
  5. Step 5: Solve for x
    x = 48,625,499,746.82/324,528.15
  6. Step 6: Final answer
    x = 149,834.46

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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.