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Finding the Fourth Proportional to 115,907.41, 159,895.78 and 75,602.89

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Solution

The fourth proportional to 115,907.41, 159,895.78 and 75,602.89 is: 104,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,907.41 : 159,895.78 = 75,602.89 : x
  2. Step 2: Convert to fraction form
    115,907.41/159,895.78 = 75,602.89/x
  3. Step 3: Cross multiply
    115,907.41x = 159,895.78 × 75,602.89
  4. Step 4: Simplify right side
    115,907.41x = 12,088,583,066.80
  5. Step 5: Solve for x
    x = 12,088,583,066.80/115,907.41
  6. Step 6: Final answer
    x = 104,295.17

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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.