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Finding the Fourth Proportional to 157,116.84, 235,712.16 and 51,935.81

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Solution

The fourth proportional to 157,116.84, 235,712.16 and 51,935.81 is: 77,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,116.84 : 235,712.16 = 51,935.81 : x
  2. Step 2: Convert to fraction form
    157,116.84/235,712.16 = 51,935.81/x
  3. Step 3: Cross multiply
    157,116.84x = 235,712.16 × 51,935.81
  4. Step 4: Simplify right side
    157,116.84x = 12,241,900,777.89
  5. Step 5: Solve for x
    x = 12,241,900,777.89/157,116.84
  6. Step 6: Final answer
    x = 77,915.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.