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Finding the Fourth Proportional to 186,672.36, 280,008 and 46,430.99

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Solution

The fourth proportional to 186,672.36, 280,008 and 46,430.99 is: 69,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,672.36 : 280,008 = 46,430.99 : x
  2. Step 2: Convert to fraction form
    186,672.36/280,008 = 46,430.99/x
  3. Step 3: Cross multiply
    186,672.36x = 280,008 × 46,430.99
  4. Step 4: Simplify right side
    186,672.36x = 13,001,048,647.92
  5. Step 5: Solve for x
    x = 13,001,048,647.92/186,672.36
  6. Step 6: Final answer
    x = 69,646.35

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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.