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Finding the Fourth Proportional to 172,603.02, 238,135.08 and 100,932.28

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Solution

The fourth proportional to 172,603.02, 238,135.08 and 100,932.28 is: 139,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,603.02 : 238,135.08 = 100,932.28 : x
  2. Step 2: Convert to fraction form
    172,603.02/238,135.08 = 100,932.28/x
  3. Step 3: Cross multiply
    172,603.02x = 238,135.08 × 100,932.28
  4. Step 4: Simplify right side
    172,603.02x = 24,035,516,572.38
  5. Step 5: Solve for x
    x = 24,035,516,572.38/172,603.02
  6. Step 6: Final answer
    x = 139,253.16

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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.