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Finding the Fourth Proportional to 124,303.65, 186,482.48 and 45,417.75

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Solution

The fourth proportional to 124,303.65, 186,482.48 and 45,417.75 is: 68,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,303.65 : 186,482.48 = 45,417.75 : x
  2. Step 2: Convert to fraction form
    124,303.65/186,482.48 = 45,417.75/x
  3. Step 3: Cross multiply
    124,303.65x = 186,482.48 × 45,417.75
  4. Step 4: Simplify right side
    124,303.65x = 8,469,614,428.93
  5. Step 5: Solve for x
    x = 8,469,614,428.93/124,303.65
  6. Step 6: Final answer
    x = 68,136.49

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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.