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Finding the Fourth Proportional to 125,303.66, 187,950.32 and 45,343.53

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Solution

The fourth proportional to 125,303.66, 187,950.32 and 45,343.53 is: 68,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,303.66 : 187,950.32 = 45,343.53 : x
  2. Step 2: Convert to fraction form
    125,303.66/187,950.32 = 45,343.53/x
  3. Step 3: Cross multiply
    125,303.66x = 187,950.32 × 45,343.53
  4. Step 4: Simplify right side
    125,303.66x = 8,522,330,746.71
  5. Step 5: Solve for x
    x = 8,522,330,746.71/125,303.66
  6. Step 6: Final answer
    x = 68,013.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.