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Finding the Fourth Proportional to 70,956,000.30, 106,434,000.45 and 70,956,000.30

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Solution

The fourth proportional to 70,956,000.30, 106,434,000.45 and 70,956,000.30 is: 106,434,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,000.30 : 106,434,000.45 = 70,956,000.30 : x
  2. Step 2: Convert to fraction form
    70,956,000.30/106,434,000.45 = 70,956,000.30/x
  3. Step 3: Cross multiply
    70,956,000.30x = 106,434,000.45 × 70,956,000.30
  4. Step 4: Simplify right side
    70,956,000.30x = 7,552,130,967,860,400
  5. Step 5: Solve for x
    x = 7,552,130,967,860,400/70,956,000.30
  6. Step 6: Final answer
    x = 106,434,000.45

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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.