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Finding the Fourth Proportional to 308,124.95, 425,209.50 and 172,182.33

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Solution

The fourth proportional to 308,124.95, 425,209.50 and 172,182.33 is: 237,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,124.95 : 425,209.50 = 172,182.33 : x
  2. Step 2: Convert to fraction form
    308,124.95/425,209.50 = 172,182.33/x
  3. Step 3: Cross multiply
    308,124.95x = 425,209.50 × 172,182.33
  4. Step 4: Simplify right side
    308,124.95x = 73,213,562,448.14
  5. Step 5: Solve for x
    x = 73,213,562,448.14/308,124.95
  6. Step 6: Final answer
    x = 237,609.98

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1.5x scale

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.