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Finding the Fourth Proportional to 86,668.69, 119,601.33 and 48,428.86

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Solution

The fourth proportional to 86,668.69, 119,601.33 and 48,428.86 is: 66,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,668.69 : 119,601.33 = 48,428.86 : x
  2. Step 2: Convert to fraction form
    86,668.69/119,601.33 = 48,428.86/x
  3. Step 3: Cross multiply
    86,668.69x = 119,601.33 × 48,428.86
  4. Step 4: Simplify right side
    86,668.69x = 5,792,156,066.38
  5. Step 5: Solve for x
    x = 5,792,156,066.38/86,668.69
  6. Step 6: Final answer
    x = 66,831.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.