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Finding the Fourth Proportional to 77,916.60, 107,526.06 and 44,381.88

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Solution

The fourth proportional to 77,916.60, 107,526.06 and 44,381.88 is: 61,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,916.60 : 107,526.06 = 44,381.88 : x
  2. Step 2: Convert to fraction form
    77,916.60/107,526.06 = 44,381.88/x
  3. Step 3: Cross multiply
    77,916.60x = 107,526.06 × 44,381.88
  4. Step 4: Simplify right side
    77,916.60x = 4,772,208,691.79
  5. Step 5: Solve for x
    x = 4,772,208,691.79/77,916.60
  6. Step 6: Final answer
    x = 61,247.65

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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.