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Finding the Fourth Proportional to 71,064,138.30, 106,596,207.45 and 71,064,138.30

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Solution

The fourth proportional to 71,064,138.30, 106,596,207.45 and 71,064,138.30 is: 106,596,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,064,138.30 : 106,596,207.45 = 71,064,138.30 : x
  2. Step 2: Convert to fraction form
    71,064,138.30/106,596,207.45 = 71,064,138.30/x
  3. Step 3: Cross multiply
    71,064,138.30x = 106,596,207.45 × 71,064,138.30
  4. Step 4: Simplify right side
    71,064,138.30x = 7,575,167,628,482,290
  5. Step 5: Solve for x
    x = 7,575,167,628,482,290/71,064,138.30
  6. Step 6: Final answer
    x = 106,596,207.45

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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.