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Finding the Fourth Proportional to 188,287.21, 282,430.66 and 48,045.83

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Solution

The fourth proportional to 188,287.21, 282,430.66 and 48,045.83 is: 72,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,287.21 : 282,430.66 = 48,045.83 : x
  2. Step 2: Convert to fraction form
    188,287.21/282,430.66 = 48,045.83/x
  3. Step 3: Cross multiply
    188,287.21x = 282,430.66 × 48,045.83
  4. Step 4: Simplify right side
    188,287.21x = 13,569,615,477.15
  5. Step 5: Solve for x
    x = 13,569,615,477.15/188,287.21
  6. Step 6: Final answer
    x = 72,068.71

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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.