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Finding the Fourth Proportional to 112,144,655.60, 168,216,983.40 and 112,144,655.60

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Solution

The fourth proportional to 112,144,655.60, 168,216,983.40 and 112,144,655.60 is: 168,216,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,144,655.60 : 168,216,983.40 = 112,144,655.60 : x
  2. Step 2: Convert to fraction form
    112,144,655.60/168,216,983.40 = 112,144,655.60/x
  3. Step 3: Cross multiply
    112,144,655.60x = 168,216,983.40 × 112,144,655.60
  4. Step 4: Simplify right side
    112,144,655.60x = 18,864,635,669,463,916
  5. Step 5: Solve for x
    x = 18,864,635,669,463,916/112,144,655.60
  6. Step 6: Final answer
    x = 168,216,983.40

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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.