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Finding the Fourth Proportional to 114,998.70, 158,702.72 and 64,013.66

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Solution

The fourth proportional to 114,998.70, 158,702.72 and 64,013.66 is: 88,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,998.70 : 158,702.72 = 64,013.66 : x
  2. Step 2: Convert to fraction form
    114,998.70/158,702.72 = 64,013.66/x
  3. Step 3: Cross multiply
    114,998.70x = 158,702.72 × 64,013.66
  4. Step 4: Simplify right side
    114,998.70x = 10,159,141,959.16
  5. Step 5: Solve for x
    x = 10,159,141,959.16/114,998.70
  6. Step 6: Final answer
    x = 88,341.36

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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.