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Finding the Fourth Proportional to 86,616.76, 119,531.53 and 46,872.76

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Solution

The fourth proportional to 86,616.76, 119,531.53 and 46,872.76 is: 64,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.76 : 119,531.53 = 46,872.76 : x
  2. Step 2: Convert to fraction form
    86,616.76/119,531.53 = 46,872.76/x
  3. Step 3: Cross multiply
    86,616.76x = 119,531.53 × 46,872.76
  4. Step 4: Simplify right side
    86,616.76x = 5,602,772,718.12
  5. Step 5: Solve for x
    x = 5,602,772,718.12/86,616.76
  6. Step 6: Final answer
    x = 64,684.63

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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.