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Finding the Fourth Proportional to 86,903.94, 119,981.64 and 59,726.82

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Solution

The fourth proportional to 86,903.94, 119,981.64 and 59,726.82 is: 82,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,903.94 : 119,981.64 = 59,726.82 : x
  2. Step 2: Convert to fraction form
    86,903.94/119,981.64 = 59,726.82/x
  3. Step 3: Cross multiply
    86,903.94x = 119,981.64 × 59,726.82
  4. Step 4: Simplify right side
    86,903.94x = 7,166,121,815.58
  5. Step 5: Solve for x
    x = 7,166,121,815.58/86,903.94
  6. Step 6: Final answer
    x = 82,460.26

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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.