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Finding the Fourth Proportional to 328,643.57, 453,528.12 and 177,740.57

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Solution

The fourth proportional to 328,643.57, 453,528.12 and 177,740.57 is: 245,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,643.57 : 453,528.12 = 177,740.57 : x
  2. Step 2: Convert to fraction form
    328,643.57/453,528.12 = 177,740.57/x
  3. Step 3: Cross multiply
    328,643.57x = 453,528.12 × 177,740.57
  4. Step 4: Simplify right side
    328,643.57x = 80,610,344,292.19
  5. Step 5: Solve for x
    x = 80,610,344,292.19/328,643.57
  6. Step 6: Final answer
    x = 245,281.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.