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Finding the Fourth Proportional to 173,700, 239,706.08 and 98,246.88

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Solution

The fourth proportional to 173,700, 239,706.08 and 98,246.88 is: 135,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,700 : 239,706.08 = 98,246.88 : x
  2. Step 2: Convert to fraction form
    173,700/239,706.08 = 98,246.88/x
  3. Step 3: Cross multiply
    173,700x = 239,706.08 × 98,246.88
  4. Step 4: Simplify right side
    173,700x = 23,550,374,477.03
  5. Step 5: Solve for x
    x = 23,550,374,477.03/173,700
  6. Step 6: Final answer
    x = 135,580.74

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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.