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Finding the Fourth Proportional to 117,800.64, 162,502.92 and 70,020

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Solution

The fourth proportional to 117,800.64, 162,502.92 and 70,020 is: 96,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,800.64 : 162,502.92 = 70,020 : x
  2. Step 2: Convert to fraction form
    117,800.64/162,502.92 = 70,020/x
  3. Step 3: Cross multiply
    117,800.64x = 162,502.92 × 70,020
  4. Step 4: Simplify right side
    117,800.64x = 11,378,454,458.40
  5. Step 5: Solve for x
    x = 11,378,454,458.40/117,800.64
  6. Step 6: Final answer
    x = 96,590.77

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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.