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Finding the Fourth Proportional to 208,870.79, 313,322.74 and 59,112.01

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Solution

The fourth proportional to 208,870.79, 313,322.74 and 59,112.01 is: 88,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,870.79 : 313,322.74 = 59,112.01 : x
  2. Step 2: Convert to fraction form
    208,870.79/313,322.74 = 59,112.01/x
  3. Step 3: Cross multiply
    208,870.79x = 313,322.74 × 59,112.01
  4. Step 4: Simplify right side
    208,870.79x = 18,521,136,940.11
  5. Step 5: Solve for x
    x = 18,521,136,940.11/208,870.79
  6. Step 6: Final answer
    x = 88,672.70

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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.