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Finding the Fourth Proportional to 172,328.59, 237,811.17 and 96,877.09

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Solution

The fourth proportional to 172,328.59, 237,811.17 and 96,877.09 is: 133,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,328.59 : 237,811.17 = 96,877.09 : x
  2. Step 2: Convert to fraction form
    172,328.59/237,811.17 = 96,877.09/x
  3. Step 3: Cross multiply
    172,328.59x = 237,811.17 × 96,877.09
  4. Step 4: Simplify right side
    172,328.59x = 23,038,454,119.10
  5. Step 5: Solve for x
    x = 23,038,454,119.10/172,328.59
  6. Step 6: Final answer
    x = 133,689.10

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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.