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Finding the Fourth Proportional to 86,870.00, 119,880.65 and 48,629.63

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Solution

The fourth proportional to 86,870.00, 119,880.65 and 48,629.63 is: 67,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,870.00 : 119,880.65 = 48,629.63 : x
  2. Step 2: Convert to fraction form
    86,870.00/119,880.65 = 48,629.63/x
  3. Step 3: Cross multiply
    86,870.00x = 119,880.65 × 48,629.63
  4. Step 4: Simplify right side
    86,870.00x = 5,829,750,811.11
  5. Step 5: Solve for x
    x = 5,829,750,811.11/86,870.00
  6. Step 6: Final answer
    x = 67,108.91

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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.