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Finding the Fourth Proportional to 172,465.84, 237,956.16 and 100,863.52

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Solution

The fourth proportional to 172,465.84, 237,956.16 and 100,863.52 is: 139,164.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465.84 : 237,956.16 = 100,863.52 : x
  2. Step 2: Convert to fraction form
    172,465.84/237,956.16 = 100,863.52/x
  3. Step 3: Cross multiply
    172,465.84x = 237,956.16 × 100,863.52
  4. Step 4: Simplify right side
    172,465.84x = 24,001,095,903.28
  5. Step 5: Solve for x
    x = 24,001,095,903.28/172,465.84
  6. Step 6: Final answer
    x = 139,164.35

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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.