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Finding the Fourth Proportional to 219,028.65, 328,422.48 and 98,944.53

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Solution

The fourth proportional to 219,028.65, 328,422.48 and 98,944.53 is: 148,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,028.65 : 328,422.48 = 98,944.53 : x
  2. Step 2: Convert to fraction form
    219,028.65/328,422.48 = 98,944.53/x
  3. Step 3: Cross multiply
    219,028.65x = 328,422.48 × 98,944.53
  4. Step 4: Simplify right side
    219,028.65x = 32,495,607,925.03
  5. Step 5: Solve for x
    x = 32,495,607,925.03/219,028.65
  6. Step 6: Final answer
    x = 148,362.36

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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.