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Finding the Fourth Proportional to 178,886.32, 246,869.04 and 98,316.70

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Solution

The fourth proportional to 178,886.32, 246,869.04 and 98,316.70 is: 135,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,886.32 : 246,869.04 = 98,316.70 : x
  2. Step 2: Convert to fraction form
    178,886.32/246,869.04 = 98,316.70/x
  3. Step 3: Cross multiply
    178,886.32x = 246,869.04 × 98,316.70
  4. Step 4: Simplify right side
    178,886.32x = 24,271,349,344.97
  5. Step 5: Solve for x
    x = 24,271,349,344.97/178,886.32
  6. Step 6: Final answer
    x = 135,680.30

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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.