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Finding the Fourth Proportional to 321,688.02, 482,535.53 and 97,050.42

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Solution

The fourth proportional to 321,688.02, 482,535.53 and 97,050.42 is: 145,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,688.02 : 482,535.53 = 97,050.42 : x
  2. Step 2: Convert to fraction form
    321,688.02/482,535.53 = 97,050.42/x
  3. Step 3: Cross multiply
    321,688.02x = 482,535.53 × 97,050.42
  4. Step 4: Simplify right side
    321,688.02x = 46,830,275,730.11
  5. Step 5: Solve for x
    x = 46,830,275,730.11/321,688.02
  6. Step 6: Final answer
    x = 145,576.68

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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.