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Finding the Fourth Proportional to 86,792.16, 119,773.20 and 47,048.16

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Solution

The fourth proportional to 86,792.16, 119,773.20 and 47,048.16 is: 64,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,792.16 : 119,773.20 = 47,048.16 : x
  2. Step 2: Convert to fraction form
    86,792.16/119,773.20 = 47,048.16/x
  3. Step 3: Cross multiply
    86,792.16x = 119,773.20 × 47,048.16
  4. Step 4: Simplify right side
    86,792.16x = 5,635,108,677.31
  5. Step 5: Solve for x
    x = 5,635,108,677.31/86,792.16
  6. Step 6: Final answer
    x = 64,926.47

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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.