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Finding the Fourth Proportional to 124,322.65, 186,482.61 and 74,416.69

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Solution

The fourth proportional to 124,322.65, 186,482.61 and 74,416.69 is: 111,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,322.65 : 186,482.61 = 74,416.69 : x
  2. Step 2: Convert to fraction form
    124,322.65/186,482.61 = 74,416.69/x
  3. Step 3: Cross multiply
    124,322.65x = 186,482.61 × 74,416.69
  4. Step 4: Simplify right side
    124,322.65x = 13,877,418,578.76
  5. Step 5: Solve for x
    x = 13,877,418,578.76/124,322.65
  6. Step 6: Final answer
    x = 111,624.22

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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.