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Finding the Fourth Proportional to 99,715.84, 149,573.35 and 40,551.01

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Solution

The fourth proportional to 99,715.84, 149,573.35 and 40,551.01 is: 60,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.84 : 149,573.35 = 40,551.01 : x
  2. Step 2: Convert to fraction form
    99,715.84/149,573.35 = 40,551.01/x
  3. Step 3: Cross multiply
    99,715.84x = 149,573.35 × 40,551.01
  4. Step 4: Simplify right side
    99,715.84x = 6,065,350,411.58
  5. Step 5: Solve for x
    x = 6,065,350,411.58/99,715.84
  6. Step 6: Final answer
    x = 60,826.35

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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.