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Finding the Fourth Proportional to 115,763.77, 159,703.31 and 67,995.58

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Solution

The fourth proportional to 115,763.77, 159,703.31 and 67,995.58 is: 93,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,763.77 : 159,703.31 = 67,995.58 : x
  2. Step 2: Convert to fraction form
    115,763.77/159,703.31 = 67,995.58/x
  3. Step 3: Cross multiply
    115,763.77x = 159,703.31 × 67,995.58
  4. Step 4: Simplify right side
    115,763.77x = 10,859,118,851.39
  5. Step 5: Solve for x
    x = 10,859,118,851.39/115,763.77
  6. Step 6: Final answer
    x = 93,804.13

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1.5x scale

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.