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Finding the Fourth Proportional to 11,167,218.90, 15,655,364.10 and 11,167,218.90

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Solution

The fourth proportional to 11,167,218.90, 15,655,364.10 and 11,167,218.90 is: 15,655,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167,218.90 : 15,655,364.10 = 11,167,218.90 : x
  2. Step 2: Convert to fraction form
    11,167,218.90/15,655,364.10 = 11,167,218.90/x
  3. Step 3: Cross multiply
    11,167,218.90x = 15,655,364.10 × 11,167,218.90
  4. Step 4: Simplify right side
    11,167,218.90x = 174,826,877,863,901.50
  5. Step 5: Solve for x
    x = 174,826,877,863,901.50/11,167,218.90
  6. Step 6: Final answer
    x = 15,655,364.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.