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Finding the Fourth Proportional to 123,700,626.68, 170,702,187.84 and 68,700,026.12

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Solution

The fourth proportional to 123,700,626.68, 170,702,187.84 and 68,700,026.12 is: 94,803,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,700,626.68 : 170,702,187.84 = 68,700,026.12 : x
  2. Step 2: Convert to fraction form
    123,700,626.68/170,702,187.84 = 68,700,026.12/x
  3. Step 3: Cross multiply
    123,700,626.68x = 170,702,187.84 × 68,700,026.12
  4. Step 4: Simplify right side
    123,700,626.68x = 11,727,244,762,495,634
  5. Step 5: Solve for x
    x = 11,727,244,762,495,634/123,700,626.68
  6. Step 6: Final answer
    x = 94,803,438.57

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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.