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Finding the Fourth Proportional to 78,596.79, 108,446.74 and 46,759.47

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Solution

The fourth proportional to 78,596.79, 108,446.74 and 46,759.47 is: 64,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,596.79 : 108,446.74 = 46,759.47 : x
  2. Step 2: Convert to fraction form
    78,596.79/108,446.74 = 46,759.47/x
  3. Step 3: Cross multiply
    78,596.79x = 108,446.74 × 46,759.47
  4. Step 4: Simplify right side
    78,596.79x = 5,070,912,085.63
  5. Step 5: Solve for x
    x = 5,070,912,085.63/78,596.79
  6. Step 6: Final answer
    x = 64,518.06

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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.