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Finding the Fourth Proportional to 12,293,139.90, 17,235,590.10 and 12,293,139.90

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Solution

The fourth proportional to 12,293,139.90, 17,235,590.10 and 12,293,139.90 is: 17,235,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293,139.90 : 17,235,590.10 = 12,293,139.90 : x
  2. Step 2: Convert to fraction form
    12,293,139.90/17,235,590.10 = 12,293,139.90/x
  3. Step 3: Cross multiply
    12,293,139.90x = 17,235,590.10 × 12,293,139.90
  4. Step 4: Simplify right side
    12,293,139.90x = 211,879,520,358,355
  5. Step 5: Solve for x
    x = 211,879,520,358,355/12,293,139.90
  6. Step 6: Final answer
    x = 17,235,590.10

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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.