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Finding the Fourth Proportional to 14,862,140.10, 20,781,801.90 and 14,862,140.10

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Solution

The fourth proportional to 14,862,140.10, 20,781,801.90 and 14,862,140.10 is: 20,781,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862,140.10 : 20,781,801.90 = 14,862,140.10 : x
  2. Step 2: Convert to fraction form
    14,862,140.10/20,781,801.90 = 14,862,140.10/x
  3. Step 3: Cross multiply
    14,862,140.10x = 20,781,801.90 × 14,862,140.10
  4. Step 4: Simplify right side
    14,862,140.10x = 308,862,051,368,246.19
  5. Step 5: Solve for x
    x = 308,862,051,368,246.19/14,862,140.10
  6. Step 6: Final answer
    x = 20,781,801.90

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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.