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Finding the Fourth Proportional to 145,166.50, 217,749.75 and 46,670.50

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Solution

The fourth proportional to 145,166.50, 217,749.75 and 46,670.50 is: 70,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166.50 : 217,749.75 = 46,670.50 : x
  2. Step 2: Convert to fraction form
    145,166.50/217,749.75 = 46,670.50/x
  3. Step 3: Cross multiply
    145,166.50x = 217,749.75 × 46,670.50
  4. Step 4: Simplify right side
    145,166.50x = 10,162,489,707.38
  5. Step 5: Solve for x
    x = 10,162,489,707.38/145,166.50
  6. Step 6: Final answer
    x = 70,005.75

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1.5x scale

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.