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Finding the Fourth Proportional to 308,205.16, 425,331.54 and 174,069.16

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Solution

The fourth proportional to 308,205.16, 425,331.54 and 174,069.16 is: 240,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,205.16 : 425,331.54 = 174,069.16 : x
  2. Step 2: Convert to fraction form
    308,205.16/425,331.54 = 174,069.16/x
  3. Step 3: Cross multiply
    308,205.16x = 425,331.54 × 174,069.16
  4. Step 4: Simplify right side
    308,205.16x = 74,037,103,889.31
  5. Step 5: Solve for x
    x = 74,037,103,889.31/308,205.16
  6. Step 6: Final answer
    x = 240,220.20

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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.