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Finding the Fourth Proportional to 125,655.81, 173,405.60 and 69,070.83

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Solution

The fourth proportional to 125,655.81, 173,405.60 and 69,070.83 is: 95,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,655.81 : 173,405.60 = 69,070.83 : x
  2. Step 2: Convert to fraction form
    125,655.81/173,405.60 = 69,070.83/x
  3. Step 3: Cross multiply
    125,655.81x = 173,405.60 × 69,070.83
  4. Step 4: Simplify right side
    125,655.81x = 11,977,268,718.65
  5. Step 5: Solve for x
    x = 11,977,268,718.65/125,655.81
  6. Step 6: Final answer
    x = 95,318.07

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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.