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Finding the Fourth Proportional to 307,875.03, 424,874.75 and 171,904.38

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Solution

The fourth proportional to 307,875.03, 424,874.75 and 171,904.38 is: 237,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,875.03 : 424,874.75 = 171,904.38 : x
  2. Step 2: Convert to fraction form
    307,875.03/424,874.75 = 171,904.38/x
  3. Step 3: Cross multiply
    307,875.03x = 424,874.75 × 171,904.38
  4. Step 4: Simplify right side
    307,875.03x = 73,037,830,476.41
  5. Step 5: Solve for x
    x = 73,037,830,476.41/307,875.03
  6. Step 6: Final answer
    x = 237,232.07

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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.