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Finding the Fourth Proportional to 328,275.48, 492,228.54 and 103,594.05

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Solution

The fourth proportional to 328,275.48, 492,228.54 and 103,594.05 is: 155,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,275.48 : 492,228.54 = 103,594.05 : x
  2. Step 2: Convert to fraction form
    328,275.48/492,228.54 = 103,594.05/x
  3. Step 3: Cross multiply
    328,275.48x = 492,228.54 × 103,594.05
  4. Step 4: Simplify right side
    328,275.48x = 50,991,947,984.19
  5. Step 5: Solve for x
    x = 50,991,947,984.19/328,275.48
  6. Step 6: Final answer
    x = 155,332.80

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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.