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Finding the Fourth Proportional to 157,866.36, 236,799.54 and 64,379.40

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Solution

The fourth proportional to 157,866.36, 236,799.54 and 64,379.40 is: 96,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,866.36 : 236,799.54 = 64,379.40 : x
  2. Step 2: Convert to fraction form
    157,866.36/236,799.54 = 64,379.40/x
  3. Step 3: Cross multiply
    157,866.36x = 236,799.54 × 64,379.40
  4. Step 4: Simplify right side
    157,866.36x = 15,245,012,305.48
  5. Step 5: Solve for x
    x = 15,245,012,305.48/157,866.36
  6. Step 6: Final answer
    x = 96,569.10

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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.