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Finding the Fourth Proportional to 358,447.02, 537,683.13 and 121,758.90

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Solution

The fourth proportional to 358,447.02, 537,683.13 and 121,758.90 is: 182,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,447.02 : 537,683.13 = 121,758.90 : x
  2. Step 2: Convert to fraction form
    358,447.02/537,683.13 = 121,758.90/x
  3. Step 3: Cross multiply
    358,447.02x = 537,683.13 × 121,758.90
  4. Step 4: Simplify right side
    358,447.02x = 65,467,706,457.36
  5. Step 5: Solve for x
    x = 65,467,706,457.36/358,447.02
  6. Step 6: Final answer
    x = 182,642.63

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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.