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Finding the Fourth Proportional to 112,960.70, 169,173.88 and 98,088.79

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Solution

The fourth proportional to 112,960.70, 169,173.88 and 98,088.79 is: 146,901.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,960.70 : 169,173.88 = 98,088.79 : x
  2. Step 2: Convert to fraction form
    112,960.70/169,173.88 = 98,088.79/x
  3. Step 3: Cross multiply
    112,960.70x = 169,173.88 × 98,088.79
  4. Step 4: Simplify right side
    112,960.70x = 16,594,061,188.81
  5. Step 5: Solve for x
    x = 16,594,061,188.81/112,960.70
  6. Step 6: Final answer
    x = 146,901.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.