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Finding the Fourth Proportional to 172,490.02, 238,036.11 and 97,038.52

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Solution

The fourth proportional to 172,490.02, 238,036.11 and 97,038.52 is: 133,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,490.02 : 238,036.11 = 97,038.52 : x
  2. Step 2: Convert to fraction form
    172,490.02/238,036.11 = 97,038.52/x
  3. Step 3: Cross multiply
    172,490.02x = 238,036.11 × 97,038.52
  4. Step 4: Simplify right side
    172,490.02x = 23,098,671,820.96
  5. Step 5: Solve for x
    x = 23,098,671,820.96/172,490.02
  6. Step 6: Final answer
    x = 133,913.09

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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.