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Finding the Fourth Proportional to 115,363.85, 159,159.53 and 67,599.77

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Solution

The fourth proportional to 115,363.85, 159,159.53 and 67,599.77 is: 93,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,363.85 : 159,159.53 = 67,599.77 : x
  2. Step 2: Convert to fraction form
    115,363.85/159,159.53 = 67,599.77/x
  3. Step 3: Cross multiply
    115,363.85x = 159,159.53 × 67,599.77
  4. Step 4: Simplify right side
    115,363.85x = 10,759,146,994.51
  5. Step 5: Solve for x
    x = 10,759,146,994.51/115,363.85
  6. Step 6: Final answer
    x = 93,262.73

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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.