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Finding the Fourth Proportional to 101,895.68, 152,681.70 and 68,492.90

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Solution

The fourth proportional to 101,895.68, 152,681.70 and 68,492.90 is: 102,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,895.68 : 152,681.70 = 68,492.90 : x
  2. Step 2: Convert to fraction form
    101,895.68/152,681.70 = 68,492.90/x
  3. Step 3: Cross multiply
    101,895.68x = 152,681.70 × 68,492.90
  4. Step 4: Simplify right side
    101,895.68x = 10,457,612,409.93
  5. Step 5: Solve for x
    x = 10,457,612,409.93/101,895.68
  6. Step 6: Final answer
    x = 102,630.58

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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.