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Finding the Fourth Proportional to 78,058.80, 107,718.76 and 44,068.56

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Solution

The fourth proportional to 78,058.80, 107,718.76 and 44,068.56 is: 60,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,058.80 : 107,718.76 = 44,068.56 : x
  2. Step 2: Convert to fraction form
    78,058.80/107,718.76 = 44,068.56/x
  3. Step 3: Cross multiply
    78,058.80x = 107,718.76 × 44,068.56
  4. Step 4: Simplify right side
    78,058.80x = 4,747,010,638.19
  5. Step 5: Solve for x
    x = 4,747,010,638.19/78,058.80
  6. Step 6: Final answer
    x = 60,813.27

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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.